A folding table tennis table includes: first to fourth vertical pillars fixed and installed perpendicular to the bottom of left and right table tennis tables; support means installed obliquely at an angle between the outer surface near the upper portion of the first to fourth vertical pillars and the bottom surface of the left and right table tennis tables to contract or expand according to an applied force; first to third folding means installed on a bottom surface of a surface facing the left and right table tennis tables; left first and second link means installed in parallel with one end connected to each of the first folding means and the third folding means and the other end.

A closed cell foam sleeping pad has a foldable configuration and can be folded accordion style. The sleeping pad's top and bottom surfaces have a plurality of protrusions and a plurality of indentations, wherein the protrusions and indentations are arranged at different locations on different but adjacent foldable sections of the sleeping pad body such that when the pad is folded accordion style, the protrusions nest into the indentations perfectly to give the sleeping pad a smaller packing density while at the same time providing the protrusions for added user comfort.

A closed cell foam sleeping pad has a foldable configuration and can be folded accordion style. The sleeping pad's top and bottom surfaces have a plurality of protrusions and a plurality of indentations, wherein the protrusions and indentations are arranged at different locations on different but adjacent foldable sections of the sleeping pad body such that when the pad is folded accordion style, the protrusions nest into the indentations perfectly to give the sleeping pad a smaller packing density while at the same time providing the protrusions for added user comfort.

Described herein is a multi-purpose portable platform stage for elevating a platform of the stage over a surface on which the stage is placed, that can be converted by a single person individually without assistance from an operational configuration in which one or more persons can stand, move and operate on the platform without the platform collapsing, and in which one or more objects can be placed and used on the platform, by or without such persons, without the platform collapsing, to a portable configuration in which the single person can carry the stage individually without assistance.

Described herein is a multi-purpose portable platform stage for elevating a platform of the stage over a surface on which the stage is placed, that can be converted by a single person individually without assistance from an operational configuration in which one or more persons can stand, move and operate on the platform without the platform collapsing, and in which one or more objects can be placed and used on the platform, by or without such persons, without the platform collapsing, to a portable configuration in which the single person can carry the stage individually without assistance.

A foldable stool has a stool surface and two support legs; the stool surface is made of flexible materials capable of being folded to form a storage compartment; two support legs are swingly connected to each other, the top of two support legs are respectively connected to the left side and right side of a bottom surface of the stool surface; each support leg is hollow inside with an upper section, a middle section and a lower section connected together; an elastic rope runs through inside of each support leg, when the elastic rope is extended, the three sections are separated from each other and rotatably folded into the storage compartment. The stool is simple in structure, light and easy to use and low in cost, easy to carry and also is very beautiful.

A foldable stool has a stool surface and two support legs; the stool surface is made of flexible materials capable of being folded to form a storage compartment; two support legs are swingly connected to each other, the top of two support legs are respectively connected to the left side and right side of a bottom surface of the stool surface; each support leg is hollow inside with an upper section, a middle section and a lower section connected together; an elastic rope runs through inside of each support leg, when the elastic rope is extended, the three sections are separated from each other and rotatably folded into the storage compartment. The stool is simple in structure, light and easy to use and low in cost, easy to carry and also is very beautiful.

A foldable table includes a supporting frame, a tabletop and an auxiliary support. The supporting frame includes first and second mounting assemblies pivotally connected to each other at their proximal sides. The tabletop includes a first panel coupled with the first mounting assembly and a second panel coupled with the second mounting assembly such that the first and second panels are rotatable with respect to each other between a folded position and an unfolded position. The auxiliary support includes an auxiliary bar coupled with the supporting frame or the tabletop. When the first and second panels are in the unfolded position, the auxiliary bar is disposed between and coupled with the proximal sides of the first and second panels. As such, the auxiliary support helps align the first and second panels or prevent the proximal sides of the first and second panels from warping, sagging, dislocation or misalignment.

A foldable table includes a supporting frame, a tabletop and an auxiliary support. The supporting frame includes first and second mounting assemblies pivotally connected to each other at their proximal sides. The tabletop includes a first panel coupled with the first mounting assembly and a second panel coupled with the second mounting assembly such that the first and second panels are rotatable with respect to each other between a folded position and an unfolded position. The auxiliary support includes an auxiliary bar coupled with the supporting frame or the tabletop. When the first and second panels are in the unfolded position, the auxiliary bar is disposed between and coupled with the proximal sides of the first and second panels. As such, the auxiliary support helps align the first and second panels or prevent the proximal sides of the first and second panels from warping, sagging, dislocation or misalignment.

One or more devices are provided that are configured to detachably engage within a modular system. The one or more devices are expandable to provide a surface to perform work.