RL1100 Portable Platform Scales Feature: Cast Iron Construction, 1,000lb or 500Kg Capacity Models Available, Easy to Read Die-Cast Beam, Locking Screw Knob on Poise, Slotted Cast Iron Counterpoise Weights Marked to Scale Capacity, Easy to Use Weight Beam Lock, Heavy Duty Wheels for Portability. 18" X 27" Platform Size.