This Sealey trail box is fully mobile with two heavy-duty wheels & a retractable handle. All five storage boxes slide in to the sturdy composite frame & all five boxes are fitted with strong composite clasps. The toolbox can be locked with padlocks on each side though padlocks are not included). Secure closing with lift & lock latches.• All 5 storage boxes slide out of the frame separately for easy access to the box required.