Chapin 8500B 200-Pound Stainless Steel Professional Rock Salt Drop Spreader features 36" deep drawn Stainless Steel hopper (Seamless with no welds). Discharge holes located behind the wheels for a full 36" drop width. Independent left and right solid linkage gate controls. Stainless steel drive chains resist corrosion and provide unfailing torque to destroy clumps of salt. Third idler wheel for easy maneuvering