CB-2000

DFP highly recommends this particular device for discreet, sanitary, and effective chastity, suitable for long-term wear. They are comfortable, easy to stay clean in, and appealing to look at.  The CB-2000 consists of 2 parts, commonly referred to as the "Cuff Ring" and the "Cage". The cuff rings are solid.  The Full Package comes with all five solid rings, in sizes 1-1/2", 1-5/8", 1-3/4", 1-7/8" and 2".  You can experiment to find the one that fits you the best.
A locking pin inserts through the backside (closest to the body) of the cuff ring and will insert into the cage portion.  Once inserted into through the locking pin hole in the cage, you will put the lock on that will secure the device to the male.  There are three different lengths of locking pins included in the full package, plus spacers. The cage has two alignment posts that fit into the cuff ring.  They make the whole unit stable during daily wear and especially during arousals and partial erections.
Getting the right fit:
To get the right fit, you will experiment to find the right cuff ring, spacers, and locking pin.  A cuff ring that is too tight will cause swelling of the scrotum.  Even a correct-fitting cuff ring will cause a little swelling because it is trapping the genitals and causing some tightness.
The spacers will create a space between the cuff ring and the cage.  If the cage is pulled too close to the scrotum, there will be swelling.  To make the CB-2000 most secure, get a good tight fit on the cuff ring, and maybe a 1/4" or 3/8" spacer.  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.
Available in pink, grey, or clear (most popular) Click on more images to see additional colors.

NOTE: DO NOT call me to complain about how frustrating this device is, or how you didn't know it was really going to do it's job THAT effectively. This is an actual chastity device. And no, I will not sell you extra keys after you already have one. They are not all keyed the same anyway, and you need to ask your KEYHOLDER for release. MEN!