Several styles, wear-resisting, used to protect bottom of bags, its made of PC,PVC etc. Bottomr rod has simple appearance,abrasion resistance, used to protect the bottom of travel luggages. Tools bags also use the big bottom.
The rugged plastic molded bottom of this electrician tool bag protects yr tools from water, mud, snow. And these tool bags help to maintain yr tools dry & safe.- An excellent waterproof tool bag.