Limbsaver 12650 True-Track Tactical 7"-11" Black Durable Isoplast In An Effort To Minimize The Complexity Of The Design, LimbSaver engineered This Bipod To Be Simple And Reliable, resulting In a Less Cumbersome Product. Without The Use Of springs guarantees No creaking, Or clanging Sounds, And No pinched Fingers. The Innovative Design Allows You To Pivot On uneven Terrain.