Tenga Smart Vibe Ring SVR size .63 inch depth by 1.50 inches in width by 3.54 inches in height. Ring diameter at rest 31mm e or approximately 1.22 inches. Weight 0.6 pound. Vibration settings 5 strengths, 2 patterns. Other specifications: running time approximately 60 minutes full power. Charging time approximately 60 minutes - 5V 1A. Waterproof up to 50cm e or approximately 19.68 inches. USB Rechargeable. Materials Body FDA Approved Silicone, ABS plastic, Li-ion Battery. Travel case polypropylene PP.