Noteworthy Features of the SOF® Tourniquet 1) Performance Compression Band Reinforced 1.5" polyester webbing glides smoothly through the buckle for fast, snag-free application and retains pressure over time. 2) Slack Indicator Wedge Built-in contrast wedge confirms all slack is removed—essential for proper use and fewer windlass rotations. 3) Rugged Buckle Lightweight, durable composite buckle removes slack in one motion and stabilizes the band at any angle. 4) Aluminum Windlass 5.5" anodized, aircraft-grade aluminum windlass with conical ends and grip texture for strong, consistent torque. 5) TRAC™ Clip Holds the windlass in place before locking, offering better control during tough, one-handed applications. 6) Tri-Ring Lock™ Secures the windlass with one hand and prevents shifting during movement. 7) Time Tag Write-on tag for recording application time. Specifications: 5.5" x 2" x 1.75" (folded), 3.7oz | NSN: 6515-01-696-4522 | Patents: US-8,303,620; D649,642; 7,776,064