Sumner Eventer Lifts; Sumner Features 3 Sizes of Eventer Theatrical Lifts for Lifting Lights, Speakers and Truss Sections. available In; 16, X 500Lb Capacity; 20, X 800Lb Capacity; 25, X 650Lb Capacity; new this years are a Line of Rolling Material Carts, our Enter Tainer Macs. Truck Pack Sizes, They Feature Rugged Steel Mesh Construction, Heavy Duty Casters and Stack Ability with Access to Lower Carts, Beauty Products, Metal Mesh ...