Earthway 2130SS 65 Pound High Output Spreader, Stainless Steel Frame Poly 65Lb/30Kg hopper capacity - rustproof poly construction 175Lb/79Kg load bearing capacity - what the frame will support 13"/33Cm pneumatic stud type tires on rust-proof poly rims Heavy-duty stainless steel "diamond" chassis Super-duty gearbox for long life