This system creates random, lifelike movement of a threat target behind a stationary hostage target Compatible with all handguns and rifles No battery or pneumatic power is required Movement is created using wind and the patent pending counterbalance technology A pulley bracket is also included so the target movement can be manually controlled in both directions with a rope (not included) Portable, 50 lb. system, transports in two sections and sets up in minutes without tools System includes everything shown except cardboard targets and wood articles Accepts standard IDPA and IPSC cardboard targets Most law enforcement targets are compatible but Mfg: Challenge Targets SPECS: System Dimensions: 15" wide x 19" deep x 6" tall (with cardboard targets installed). Weight: 51 lbs. Base and Rocker Assembly: 12 gage & 7 gage steel with black powder coat finish. Hardware: stainless steel and zinc plated steel.