Once the flexible IUB™ Ballerine® frame is released from the insertion tube in the uterus it remembers its 3-dimensional past and coils into a round and smooth shape without sharp edges and corners.

Attached to one end of the frame are two removal strings that serve to remove the IUB™ Ballerine®.

The use of the shape memory alloy Nitinol as carrier material in an intrauterine contraception device is unique. For many years this alloy has been successfully used in medical implants.

The IUB™ Ballerine® lasts for up to 5 years.