a rotating cap

as indicated by the manufacturer's brief description

please refer to the manufacturer's datasheet: See datasheet from the manufacturer

Key Technical Points

Lagerkasse klar 132x400x100mm Unit(s):Pcs a rotating capShelf bin from TRESTON This Treston shelf bin 4015 1 is a transparent shelf bin designed for storage and organization on standard metric shelves. The product has manufacturer code 4015 1 and is made of clear polystyrene (PS) with a corrugated base that reduces the risk of small items sliding. Material and construction Material: crystal clear polystyrene (PS) Corrugated base to prevent items from sliding Color: Crystal clear (transparent) Documentation