>>2550048 I answered that question in the last post. here >>2538532 you can see both sets of cuffs. the black set are normal and the other set have a cut a few teeth cut off them so you cant over tighten them. so no 1 by err can over do it. Crystal cant get out but she can move her hands around in them a lot. she knows to keep moving but sometimes she puts to much weight on them and at the end has some really bad marks left over