Compatible with for VIVE Tracker and VIVE Tracker 3.0 (Tracker not includs in package) Perfect for full body tracking - The belt and straps are easily attached to your waist, hands, feet.The package includes an ankle auxiliary strap, which provides greater stability and sense of security, and no longer to worry about detaching or loosening during . Loved by players-using Breathable elastic material, soft, wear-, non-slip, adjustable,relieve fatigue and sweat caused by long-term gaming. Upgrade Sturdy Screw Base - The screw and the base are integrally formed, which is more firm. Material:webbing colour:black Package Contents: 1 * Track Belt (Not Included VIVE Tracker) 2 * Track Strap 1 * Auxiliary Strap Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.