Heavy gauged steel construction with steel inner walls for extra strength and durability.Rust and solvent resistant powder coat paint finish.Full height rear locking mechanism, locks full-length drawers in multiple locations. Heavy-duty 45mm ball bearing drawer runners provide superior performance and carry heavier loads. Each drawer features stainless steel drawer pulls and non-slip liners.Two 125mm dia. fixed rubber wheels plus two swivel 125mm dia. rubber tyred castors with large toe locks.1179pc Tool Kit included.5 drawer topchest with ball bearing runners - Overall size: W660 x D435 x H490mm, medium drawer (x5) : W532 x D395 x H60mm.2 drawer add-on chest with ball bearing runners Overall size: W670 x D440 x H210mm, medium drawer (x2) : W532 x D395 x H60mm.7 drawer rollcab with ball bearing runners Overall size: W760 x D465 x H995mm, medium drawer (x5) : W532 x D395 x H60mm, large drawer (x2) : W532 x D395 x H160mm.