CoreX Viper Push / Pull Gym Sled with Harness! This is a well built, high quality, heavy duty sled (900 lbs capacity) which is ideal for strength and conditioning exercises. The CoreX Viper sled features three instead of the usual two weight stack poles found on prowler style sleds. The middle pole facilitates better weight distribution and improved front ski traction compared to sleds with only rear poles. The middle pole is supported by a frame cross bar that significantly improves sled rigidity and longevity, compared to sleds without a middle frame cross bar. The sled is laser cut for exacting standards. This durable sled is built to last with reinforced triangle braces surrounding the rear weight stack poles and thick replaceable skis (3/8). The skis are attached at the shaft with two thick opposing bolts that ensure a snug, reliable fit, that wont scrape on the ground when ski wear occurs, unlike ski mounted bolts. The CoreX Viper sled can be used on concrete, grass, turf, or indoors. Quickly disassembles to a "flat pack" for ease of taking to park, gym, or track. Three front attachment points provide added pulling flexibility for single, double or triple attachment. The Viper sleds frame is electrostatically powder coating for a durable wear. Supplied with a free universal pulling harness, 16 foot tow strap and three attachment carabiners.