Keep work at a convenient height. Less back strain when loading or unloading cart contents. Basket Truck Spring Lifts are compatible with Registry and Royal Basket Trucks vinyl and canvas basket trucks. Carts sold separately. A vinyl covered platform hangs with 3" or 7" springs. Powder coated attachment clips reduce wear and tear on the top rim of the basket. Springs fully extend at approximately 150 lbs. Replacement and low tensions springs available. Custom sizes available. Available in a varity of color options. Made in the USA. Spring lifts are not returnable.