Designed for maximum comfort, the Perfect Fit Harness is made with soft nylon material that prevents 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 (76 cm), while the included waistband extension fits waists up to 68 inches (173 cm). Three metal snaps secure an O-ring that holds most dildos with suction cups or flared bases securely. Three sizes of silicone O-rings are included that accommodate dildos with a diameter up to 2 inches (5 cm). An opening in the front panel allows the harness to be paired with some styles of "strapless strap-on" style dildos to provide added support.