This Extreme Under the Bed Restraint System is easy to set up, in fact, sets up in mere minutes. Fits any size mattress or door and travels anywhere well. Use at home or on your vacations. Includes six points of restraint. Welded O-Rings for added strength and durability. Cuffs not included. Use with EDGE wrist, ankle and arm cuffs. O-Ring to O-Ring 132 (335.3cm). Center strap 66 (167.6cm), webbing width 1.5(3.8cm).