Auto Bondage Ice Ball Lock

Autobondage Ice Ball lock - 70mm ball made of stainless steel. The Ice Castle works on the principle of melting ice. It's perfect for self-bondage. Simply fill it with water, insert the 2 sticks, and the excess water will come out. Then place it in the freezer compartment. There is a hole in the outer tube that prevents the lock from being blown up by freezing water. Capacity approx. 250ml. The opening time depends on the ambient temperature; this lock opens after about 2h30min at a temperature of 20 ° C. The two eyelets at the ends are for attaching ropes