The harness is adjustable in two places at the waist and one per leg. Pull the straps to tighten the harness then just lift the buckle to release. The harness fits up to 60in hips, however it easily trims to your size. It is comfortable, secure and washable. The harness accommodates any toy with a flared base (you provide the toy). There are three silicone o-rings for a perfect toy fit. The variable speed vibrator slips into the harness pocket for clitoral stimulation. The vibrator even comes with its own batteries. This sexy velvet harness is purple with black straps.