Material: Stainless Steel+Silicone Size: size as picture shown,only the ankle cuffs size is optional. Male ankle cuffs diameter is 7.8cm Female ankle cuffs diameter is 7.2cm When the screw on the middle bar is loose,(in this situation,the dildo can be pressed up and down) the middle bar total length is 78cm, if you think This length is not enough, for example, user is a tall woman, then you might need to customize the middle bar’s length.( I can make the bar of dildo part longer than the original length) Ask the user to separate the legs (the distance between the legs is 40-60 cm), and then measure the distance from the ground to the user's vagina or anus (including the penis insertion depth). This is the length of the middle rod you need to customize.