Manufactured with double skin side walls for extra strength & finished in smooth higloss triple baked enamel finish Resists scratches oil dirt & most solvents Drawers run on extending rail type runners for strength & drawer faces have full length pulls with chrome style trim All boxes feature rearlocking mechanism with tumbler type security locks with 2 numbered keys For mobility around the workshop even when fully laden the cabinets in addition feature 125mm hard compound rubber castor wheels with 2 fixed & 2 swivel locking castor brackets also a sturdy all steel side handle