BLUE HILLS STUDIO-Stow & Go Mobile Cart. This cart is made of black plastic coated heavy gauge steel and the frame comes pre-assembled with welded shelf supports. The four coasters (two locking) ensures it is always were you need it without straining. This cart was designed to hold Alvin 14x14in Stow & Go storage bins (not included) and the open top tier holds an open bin while in use. Cart measures 32x15-1/2x14in and can hold a total of approximately 35 pounds. Imported.