1.High-impact resistant polypropylene(PP) and sheet steel rounded 2.Usable as a climbing aid when positively locked in to place 3.Unique promotion packs, featuring a "case-in-case" design, are perfect suitable as a "crowd-puller" 4.Suitable for professional use 5.Sturdy hinged metal locks Sizes Available: JF-3011Y:58.2X29.8X22.5cm JF-3012Y:47.0X23.8X17.8cm JF-3014Y:58.2X29.8X25.5cm JF-3015Y:47.0X23.8X20.3cm metal toolbox We are in possession of own patent