Official suppler to USAV and NFHS Meets all USAV, NCAA, NFHS and FIVB specifications. High strength upright made of 3" (76mm) O.D. steel for the highest level of competitive play. Navy blue powder coated upright with chrome plated piston. Spring-loaded piston for easy adjustment regardless of competitive height. Adjustable height worm gear winch eliminates dangerous backlash and keeps net tight during intense play. Nylon leader strap allows for safety and easy net attachment. Piston rivet for easy net attachment. Use with the 438-290 Elite Steel Upright Package and 438-291 Elite Steel Winch End Upright to make a three-court (or more) set up. Requires 3" floor sleeves (not included). Ten-year limited warranty. 438-293 Elite Steel Multi-Court Upright - includes Winch end upright with collar-mounted pulley. 408-045 Antennae Package