The Kupo 610MR Medium Overhead Roller Stand is capable of mounting a 10K Fresnel 430cm in the air or flying a 6m x 6m Butterfly frame. Each riser is spring cushioned as a safety feature to protect lighting fixtures from a sudden drop if the locking collar becomes loose. The solid steel construction has a maximum load capacity of 40kg and is equipped with braked casters to easily reposition heavy loads. Each caster is equipped with a peg that extends past the wheel allowing it to stand upright when collapsed. The Medium Roller Stand also features a 4-1/2" grip head with additional offset 1-1/8" junior receiver.