This is the UTG PRO TBNR Bipod. 3 Position Folding with Steel-on-steel Lockup. Low Profile Picatinny Mount Features Tension-adjustable 360 degree Panning & 19 degree Forward, Rearward, Left, and Right Tilt. Automatic Leg Retraction. Patented Height Adjustable Spiral Guided Leg Extensions with Steel Ball Bearing Detent Ring Locks Manages Height Adjustment and Retention. Interchangeable Foot Pads Compatible with Most Aftermarket Pads with QD Locking Detent. Type III Class 2 Matte Black Hard Coat Anodized 6061-T6 and 7075-T6 Aluminum Construction with Reinforced Steel Components