The CB-3000 is the latest in chastity design. The sizing is mid-way between the CB-2000 and The Curve. It represents the natural lines of the penis. It is extremely transparent which makes it very intriguing while being worn. The slope makes it virtually undetectable under clothing. Take the time to find the right sized cuff ring and the proper spacing to get the exact custom fit. The material is a highly durable polycarbonate. It is very light weight which adds to the comfort. It is vented with slots allowing natural air drying. The design also allows for hygiene when bathing. Use a soapy sponge or cloth to allow the soap and water to clean the interior of the cage.