Replacement spring for Royal Basket Truck's Poly Spring Lifts. Includes a new spring, vinyl sleeve and attachment hooks. 7" length used for 10+ bushel sizes. Standard springs fully extend at approximately 150 lbs. Low tension springs fully extend at approximately 85 lbs for lighter loads. Specify vinyl sleeve color and clip style when order. Compatible with Royal Basket Trucks Poly Spring Trucks. Made in the USA.