Abstract: A height adjustable work seat is disclosed. The work seat is collapsible and extendable, and has a base, a seat pan and four folding and lockable legs. Four wheels are mounted to the bottom of the base. The folding legs connect the seat pan to the base. Each folding leg pivots at the base, the seat pan and a center pivot. The seat pan is at a maximum height relative to the base with the four folding legs fully extended. The seat pan is at a minimum height relative to the base with the four folding legs fully folded. A releasable locking mechanism secures each of the folding legs in a fully extended condition. One or more crossbars may connect opposing sleeve locks, aiding in locking, unlocking, folding or extending the pair of legs between which each crossbar extends. The seat pan may have a seatback.

Abstract: A height adjustable work seat is disclosed. The work seat is collapsible and extendable, and has a base, a seat pan and four folding and lockable legs. Four wheels are mounted to the bottom of the base. The folding legs connect the seat pan to the base. Each folding leg pivots at the base, the seat pan and a center pivot. The seat pan is at a maximum height relative to the base with the four folding legs fully extended. The seat pan is at a minimum height relative to the base with the four folding legs fully folded. A releasable locking mechanism secures each of the folding legs in a fully extended condition. One or more crossbars may connect opposing sleeve locks, aiding in locking, unlocking, folding or extending the pair of legs between which each crossbar extends. The seat pan may have a seatback.

Abstract: A creeper chair having a frame, a seat and at least one side platform flanking said seat. The platform includes a product-retaining holder in any combination of number, sizes and shapes to secure various products and supplies or tools to said platform.