Designed for maximum comfort. the Perfect Fit Harness is made with soft nylon and Luv Touch materials that prevent chafing and feel great against the skin. The durable 4 way adjustable straps feature an easy close clip and fit thighs up to 30 inches. while the included waistband extension fits waists up to 68 inches. Three metal snaps secure the metal O-Ring and hold everything in place even when the action heats up. The three included silicone O-Rings allow you to interchange a range of dildos with a diameter up to 2 inches.