An axle-free wheel comprising: an outer rim member having a ground interface on an external surface thereof and an outer ball race or rolling race on an inner surface thereof; an inner rim member having an inner ball or rolling race on an outer surface thereof.

An axle-free wheel comprising: an outer rim member having a ground interface on an external surface thereof and an outer ball race or rolling race on an inner surface thereof; an inner rim member having an inner ball or rolling race on an outer surface thereof.

A collapsible pet carrier includes: an interior space defined between opposing side walls, opposing end walls, a bottom wall, and a top wall. One of the walls may be opened to allow access to the interior space. An expandable rigid board is located at least partially within one the walls. In an expanded configuration of the pet carrier the board is located substantially along a length of one of the walls to provide support to the collapsible pet carrier when the collapsible pet carrier is expanded. In a collapsed configuration of the pet carrier the board extends along less than half of the length of one of the walls to allow the pet carrier to be folded along one of the opposing side walls, opposing end walls, bottom wall, and top wall.

A collapsible pet carrier includes: an interior space defined between opposing side walls, opposing end walls, a bottom wall, and a top wall. One of the walls may be opened to allow access to the interior space. An expandable rigid board is located at least partially within one the walls. In an expanded configuration of the pet carrier the board is located substantially along a length of one of the walls to provide support to the collapsible pet carrier when the collapsible pet carrier is expanded. In a collapsed configuration of the pet carrier the board extends along less than half of the length of one of the walls to allow the pet carrier to be folded along one of the opposing side walls, opposing end walls, bottom wall, and top wall.

Embodiments include a pack bag including an outer container and an inner removable accessory organizer. The inner removable accessory organizer includes multiple compartments. The outer container includes an external easy-access portal through which contents of at least one of the compartments of the inner organizer are accessible. The pack bag includes a second external easy-access portal through which contents of another compartment of the inner organizer are accessible. The inner organizer includes a first pull handle to unfold and deploy the compartments when bundle straps are unfastened, and a second pull handle to fold the compartments one atop the other when the bundle straps are unfastened. When the bundle straps are fastened, the compartments are held together as a single bundled unit, such that the inner organizer is liftable as the single bundled unit out of the outer container simultaneously using the first pull handle and the second pull handle.

Embodiments include a pack bag including an outer container and an inner removable accessory organizer. The inner removable accessory organizer includes multiple compartments. The outer container includes an external easy-access portal through which contents of at least one of the compartments of the inner organizer are accessible. The pack bag includes a second external easy-access portal through which contents of another compartment of the inner organizer are accessible. The inner organizer includes a first pull handle to unfold and deploy the compartments when bundle straps are unfastened, and a second pull handle to fold the compartments one atop the other when the bundle straps are unfastened. When the bundle straps are fastened, the compartments are held together as a single bundled unit, such that the inner organizer is liftable as the single bundled unit out of the outer container simultaneously using the first pull handle and the second pull handle.

A horizontally movable bowling bag is provided to prevent movement of a bowling ball configured such that, in order to prevent movement or falling of the bowling ball when a frame is horizontally moved or when a cover is opened, four or more points of the bowling ball including a lower part of the bowling ball and a bottom surface of the bowling ball along an outer circumference thereof are adjacent to or supported by an upper part of a ball cup provided at the frame and an inner surface of the frame, whereby movement of the bowling ball in the frame is prevented when the frame is horizontally moved.

An axle-free wheel comprising: an outer rim member having a ground interface on an external surface thereof and an outer ball race or rolling race on an inner surface thereof; an inner rim member having an inner ball or rolling race on an outer surface thereof.

An axle-free wheel comprising: an outer rim member having a ground interface on an external surface thereof and an outer ball race or rolling race on an inner surface thereof; an inner rim member having an inner ball or rolling race on an outer surface thereof.