Inside length: 3¾". Inside diameter: 1½".

The Curve represents the latest design in modern male chastity devices from the same designers who invented the best-selling CB-2000. The Curve has a slightly different and improved design that will fit men in a somewhat larger range of sizes than the CB-2000.

The natural flow of lines in this model conforms with the penis and body, making it feasible to wear The Curve under clothing. It is vented with curving lines and openings for comfort and hygiene. The material, a highly durable transparent polycarbonate, is functional and appealing, and its strength exceeds that of acrylic and many other plastic blends.

Some men find it possible to use the urinals while wearing The Curve, though most find it more practical to sit. When locked with a plastic lock, the device will not set off metal detectors in airports or at other security checkpoints. So it is possible to wear the device 24/7 without interfering with travel or business routines. (Just make sure to use the plastic lock and not the brass lock under these circumstances.) This compact design involves no uncomfortable belts, straps or chains.

The Curve consists of two main parts, the cage portion and the cuff ring. They slide together easily by means of two guide pins, and fasten with a locking pin. The guide pins extend from the cage portion. Different-sized spacing rings are provided to allow a personalized fit.

The five rings included in the kit have inside diameters of 1½", 1 5/8", 1¾", 1 7/8", and 2", respectively. Once you find the right spacing, simply use a pair of side cutter pliers to snip the ends of the guide pins and then smooth the edges with an emery board or file. The locking pin is slightly recessed into the body cuff.

For additional comfort, we suggest applying baby oil or a similar product to the penis with a cotton swab after showering. The Body Cuff comes in five different sizes, and swivels open at the bottom, allowing it to be closed around the cock and balls. Align the locking pin holes with the locking pins on the main part of the cage, add the proper amount of spacers and then install the cage portion. The balls will then be trapped between the cuff and the cage. The smooth, rounded design minimizes pinching and chafing while being worn.

Finding the right-sized Body Cuff is important for reasons of comfort and security. It should be as tight as possible without cutting off any circulation. If you are wearing a cuff that is too tight, it may cause some swelling and discoloration of the ball sac. If you see any discoloration, or experience numbness or aching discomfort, you definitely need to go to the next larger size.

If you have a particularly high (short/tight) ball sac, you may find that you will need to stretch the ball sac slightly before The Curve becomes comfortable and suitable for longer-term wear. For the most comfortable fit, the balls should hang below the cage and cuff ringto prevent pinching.

The Curve includes the following components: One brass padlock with 2 keys, 5 individually numbered, tamper-proof plastic locks, 3 different lengths of locking pins and 5 differently-sized spacers.

IMPORTANT NOTE: As a rule, we do offer a satisfaction guarantee on the items in our catalog that don't come in contact with genetals or the rectal region. However, the CB-2000/3000 and Curve can't be sterilized once they have been worn. So we will accept NO RETURNS on these items, unless there are defects in the products (or there are other exceptional reasons authorized at our discretion). We will, however, make the effort to support your use of the product.