An adjustment pen, including a pen body, the pen body including a pen tip, wherein the adjustment pen further includes a light emitting unit, a control switch and a power supply module which are carried by the pen body, the light emitting unit is connected with the control switch and the power supply module to form an illumination circuit, the control switch is configured to control ON and OFF of the illumination circuit, and the light emitting unit is configured to emit a light beam toward the pen tip.

The disclosure relates to a solvent-free photocrosslinkable writing ink advantageously for a pen, including, as a percentage by weight relative to the total weight of the ink: abetween 40 and 75% of a photocrosslinkable acrylate and/or methacrylate oligomer, bbetween 1 and 55%, optionally, of a photocrosslinkable acrylate and/or methacrylate monomer, cbetween 0.5 and 6% of a photoinitiator, dbetween 1 and 10% of a dye, advantageously a basic dye, and ebetween 0 and 10% of an additive. The present disclosure further relates to a method for securing a writing medium using the ink, the crosslinked ink obtained by crosslinking the ink and a pen for photocrosslinkable ink including the ink.

The disclosure relates to a solvent-free photocrosslinkable writing ink advantageously for a pen, including, as a percentage by weight relative to the total weight of the ink: abetween 40 and 75% of a photocrosslinkable acrylate and/or methacrylate oligomer, bbetween 1 and 55%, optionally, of a photocrosslinkable acrylate and/or methacrylate monomer, cbetween 0.5 and 6% of a photoinitiator, dbetween 1 and 10% of a dye, advantageously a basic dye, and ebetween 0 and 10% of an additive. The present disclosure further relates to a method for securing a writing medium using the ink, the crosslinked ink obtained by crosslinking the ink and a pen for photocrosslinkable ink including the ink.

A writing instrument may include an upper barrel rotatably connected to a lower barrel. Writing fluid reservoirs may be housed in the upper barrel. A writing tip secured to the lower barrel may be in selective fluid communication with the writing fluid reservoirs. The upper barrel may be rotatable relative to the lower barrel of the writing instrument.

A writing instrument may include an upper barrel rotatably connected to a lower barrel. Writing fluid reservoirs may be housed in the upper barrel. A writing tip secured to the lower barrel may be in selective fluid communication with the writing fluid reservoirs. The upper barrel may be rotatable relative to the lower barrel of the writing instrument.

A multifunctional writing device comprising a hollow body, wherein the hollow body comprises one or more cavities configured to store a protractor, a ruler, a set square thirty/sixty-degree (30/60) triangle, a set square forty-five-degree (45) triangle, a compass needle, a USB flash drive, a stylus, and an eraser. A first writing member comprises lead and a mechanical pencil system being provided in a first portion of the hollow body. A second writing member comprising a pen system being provided in a second portion of the hollow body. A magnetic lock attaches and stores a protractor, a ruler, a set square thirty/sixty-degree (30/60) triangle, a set square forty-five-degree (45) triangle, and a compass needle inside a cavity. A protractor, a ruler, a set square thirty/sixty-degree (30/60) triangle, and a set square forty-five-degree (45) triangle are removed from a cavity by pulling rectangular strip top portion.

A multifunctional writing instrument includes a hollow body, wherein the hollow body comprises one or more cavities configured to attach with a projector pen and projector stick to project plurality of technical drawing tools images. A first writing member having a first writing tip is included. The first writing member includes lead and a mechanical pencil system being provided in a first portion of the hollow body, and wherein the first writing tip is axial with respect to the hollow body. A second writing member having a second writing tip is included. The second writing member comprises ink and an ink pen system being provided in a second portion of the hollow body. The first portion of the hollow body is at an opposite end of the second portion of the hollow body. The second writing tip is axial with respect to the hollow body.

A multifunctional writing instrument includes a hollow body, wherein the hollow body comprises one or more cavities configured to attach with a projector pen and projector stick to project plurality of technical drawing tools images. A first writing member having a first writing tip is included. The first writing member includes lead and a mechanical pencil system being provided in a first portion of the hollow body, and wherein the first writing tip is axial with respect to the hollow body. A second writing member having a second writing tip is included. The second writing member comprises ink and an ink pen system being provided in a second portion of the hollow body. The first portion of the hollow body is at an opposite end of the second portion of the hollow body. The second writing tip is axial with respect to the hollow body.

A multifunctional writing device comprising a hollow body, wherein the hollow body comprises one or more cavities configured to store a protractor, a ruler, a set square thirty/sixty-degree (30/60)triangle, a set square forty-five-degree (45) triangle, a compass needle, a USB flash drive, a stylus, and an eraser. A first writing member comprises lead and a mechanical pencil system being provided in a first portion of the hollow body. A second writing member comprising a pen system being provided in a second portion of the hollow body. A magnetic lock attaches and stores a protractor, a ruler, a set square thirty/sixty-degree (30/60) triangle, a set square forty-five-degree (45) triangle, and a compass needle inside a cavity. A protractor, a ruler, a set square thirty/sixty-degree (30/60)triangle, and a set square forty-five-degree (45) triangle are removed from a cavity by pulling rectangular strip top portion.

A system and method directed to a magnetic clip accessory that attaches to headwear such as a baseball cap where the magnetic clip includes a fastening clip, a body, a magnetic plate, a magnetic sleeve, a set of arms, whereby the magnetic clip provides attachment for miniature light and a sleeve and a tube for a writing utensil such as a pen.