We make our bondage shackle sizes measured as circumference, the distance around the wrist or ankle is 6.5",7" 8", 9" 10", 11" and 12"
Neck sizes are From 11" to 19"
Measure Around Wrist
For the wrist, Use two measurements to make sure the bondage shackle fits properly around your wrist and to make sure it does not slide off over your hand. Measure the distance around the smallest part of the wrist. The easiest way is with a cloth sewing measure tape available at any drug store. Mine measures 7" and my mistress measures 6"
Measure around Palm
The next measurement determines how easily the shackle will come off. Looking at your palm, close your thumb into the palm of your hand touching the base of your little finger. Measure around the base knuckle of the thumb and around the palm. Mine measures 9 ¼" and my mistress measures 8"
Sizing For Ankle Bondage:
For ankles there is a lot more leeway. The first measurement is the smallest part of the ankle, mine is 8" and My Mistress is also 8". We want the ankle shackles just a bit loose so they can spin freely
Go with an ankle shackle that is about 1" larger than this measurement.
The other measurement is around the front of the ankle and the heel. This is the largest measurement that the shackle would need to go over to get it off. Mine is 12 ½" and my mistress is 12". The 11" shackle will not come off, no way. I like the 10" shackle best for me
Sizing For Neck Bondage Collar:
Collars come in neck sizes from 12" through 22". Measure your neck just like measuring for a shirt size and go easy on the tape; we do not want this one too tight. Go at least 1/2" to 1" larger that your neck measurement. Too large and it sits on you collar bone which will get sore.