The ball tie is a bondage position in which a person is bound into a ball position with the knees against the shoulders. A ball position (also called a fetal position) can be tightly bound so that the legs are also bent double so the heels press against the buttocks; the legs must be brought up so that the thighs are pressed against the chest. Pressing the thighs tightly against the abdomen may restrict breathing.
The hands may be tied either in front or behind the back, however behind the back is more typical. If behind, there may also be elbow bondage, or the arms may be in a reverse prayer position, with ropes round the arms and torso (or arms and legs) to hold the arms firmly against the back. If in front, the arms may be tied hugging the legs, or possibly with each wrist bound to the opposite elbow. The ankles may also be tied together, as well as the knees. Typically, the ankles are tied to the thighs in a frogtie.
Sometimes the submissive wears high-heeled shoes and has ropes wrapped round the heels and fixed to the wrists. This adds to the visual impact, and should be used as a supplement to other secure bondage. Under strain, the shoes may come off or the heels may break off. When tied this way, the shoes cannot be removed.
The head may be pulled back in some way, such as in head bondage. However, purists argue that this goes against the idea of binding into a ball. Alternatively, the head can be pulled forward to force the chin to press against the chest.
The position can be stringent while stimulating. At the same time, it is comfortable and the subject may remain in it for quite some time.
The ball tie is one of the positions possible in self-bondage. The mobility is limited so extra independent escape mechanisms should be used over and above the usual bondage precautions.