Top panels constructed from 18-gauge formed steel sheets with baked-on epoxy finish. Swift Tower - Slim Line - Mobile Series Cart in White with 6 x Tinted Blue -3" Trays and 6 x Tinted Blue -6" TraysCart frame finish is White, lid finish is White and supplied with 6 x Tinted Blue -3" Trays and 6 x Tinted Blue -6" Trays.•Sturdy Construction: Front and rear fully welded, 1” square, 16-gauge steel tube frames with baked-on epoxy finish.