Transport, stack and lift plastic containers to raised heights up to 42-1/2 inches with the rugged Adjustable Box Stackers. The unit has a capacity of 380 pounds. The lift is raised by a foot pump and lowered by a lowering lever located near the driving handle. The model is compact and light. Both fork width and box clamps are adjustable to fit different sizes of plastic containers; these box clamps are rubber coated to protect your plastic containers.