The CB-3000 is the latest design. Some of our customers wanted a size mid-way between the CB-2000 and The Curve. We listened to our customers requests and have brought you this exciting new male chastity device. 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 CB-3000 consists of 2 parts Cuff Ring Cuff Ring re-designed for comfort Comes in five sizes 1 1.2 inches, 1 5.8 inches, 1 3.4 inches, 1 7.8 inches and 2.0 inches. These five sizes come with each order. This allows the wearer to experiment to find his exact size. The rings swivel at the bottom making it easy to put on. Each ring consists of two guide pin holes and a recessed locking pin hole. Spacers are provided for an individual fit. These spacers go over the locking pin, between the cuff ring and the cage. Cage Portion, Inside Length 3 inches, Inside Diameter 1 3.8 inches The cage portion has two guide pins and a locking pin hole. The cuff ring goes behind the ball sack and over the penis. Install the locking pin and the spacers. Put the cage over the penis and then line up the cage portion with the cuff ring. Slide the guide pins and locking pin into place and attach a lock on the tip of the locking pin. Once you have found the exact fit, cut the ends of the guide pins with a pair of side cutter pliers and smooth the edges with an emery board.