Manufactured with double skin side walls for extra strength and finished in smooth, hi-gloss, triple baked enamel. Smooth ball-bearing drawer slides provide superior performance and carry heavier loads. Features hard compound rubber wheels, two fixed and two locking castors. All drawers have been specifically sized to accommodate our range of Siegen tool trays. This modular tool kit includes Model No. AP3505TB, AP3503TB, AP3508TB and Tool Trays S01270, S01272, S01273, S01274, S01275, S01276, S01277, S01278, S01279, S01280.