NewRay Kenworth W900 Cement Mixer in White 1:32 Scale Moving Parts Diecast Metal and Plastic Kenworth Cement Mixer W900 Made of diecast with some plastic parts. Has opening doors. Cabin is made of diecast metal, back part is made of plastic. Detailed interior, exterior. Dimensions approximately L-11, H-4.5, W-3.5 inches. Scale is 1:32 They'll have hours of fun play with this cement mixer