Abstract: A computer bag includes a layer of soft buffering piece disposed on inner/outer surface of the bag. The soft buffering piece consists of a surface layer, a middle layer and a bottom layer. The soft buffering piece includes a surface layer made from elastic textile such as Lycra, a middle layer made from waterproofing soft rubber such as styrene-butadiene rubber (SBR) and a bottom layer made from clothes such as jersey cloth. Then the three layers are hot pressing into an integrated piece with certain thickness. And a plurality of projecting units having projecting bars and projecting rings surrounding thereof are disposed evenly on surface of surface layer so as to form a buffering layer. Thus the computer bag has better buffering effect for protecting things therein.

Abstract: A shoulder strap includes a strap unit and an anti-slip unit. The anti-slip unit includes a sleeve portion, through which the strap unit is extended, and a bendable wing portion outward extended from one side of the sleeve portion. The wing portion increases the bearing and contact area of the shoulder strap with a user's shoulder to produce good anti-slip effect.

Abstract: A pen is provided at a first end with a writing element and at a second end distantly opposite to the first end with an engaging mechanism for picking up a compact disk via a central hole of the compact disk. The engaging mechanism includes a plurality of retaining lugs that together define an outer circumference adapted to interfere with an inner circumference of the central hole of the compact disk to thereby hold the compact disk to the retaining lugs, allowing the pen to pick up the compact disk.

Abstract: A bag adapted to serve as a paper support includes a bag defining an internal space for receiving an article therein, and an anti-tipping foot connected to a bottom side of the bag via a pivot bolt located within an area of the bag overlapping the anti-tipping foot. When the anti-tipping foot is pivotally turned about the pivot bolt to project at least an end from the bottom side of the bag, the bag is stably supported by the anti-tipping foot and protected from tipping over. The anti-tipping foot is provided at a free end with a flange that enables a user to operate the anti-tipping foot conveniently and prevents an article held between the flange and the bag from axially moving forward.

Abstract: A pen with cutting function includes a main body having a writing tip provided at an end thereof, and a cap fitted around the writing tip. The cap has a closed and an open end, a wall portion extended between the closed and the open end, at least one first projected portion axially extended from the wall portion to project beyond the closed end of the cap, and at least one cutting section provided at the closed end in the vicinity of the first projected portion. When the pen is so positioned with the first projected portion bearing against an article to be cut open, the cutting section at the closed end of the cap is adapted to slide along the article and smoothly cut open wrapping of the article.

Abstract: An optical disk container with writing tool holding device mainly includes a base having a stem upward extended from a central thereof, and a writing tool holding device having a central through hole, through which the stem of the base is extended to hold the writing tool holding device to the base. The writing tool holding device is provided at one side with at least one receiving section, in each of which a writing tool is received.