Bosch Bosch L-RACK-T Top Handle for use with L-RACK-S Single-Click Stacking: Easily lock tool cases together for easy transport and handling Attach L-RACK-T to the L-RACK-S, or attach to stack of L-RACK-S shelves for easier portability (Note: Attachment of the top handle is semi-permanent) Utilize L-RACK anyway you choose: Add additional storage to your current L-BOXX's or create your own personal L-RACK configuration of shelves