Before an IUD is inserted, the service provider needs to measure the depth of the uterus of the lady. This is done with the help of a Uterine Sound. Uterine Sounds are available in re-usable stainless steel material or disposable sterile plastic material. Esa is a single use, sterile disposable Uterine sound which provides the service provider/doctor the convenience of measuring the depth of uterus accurately without compromising the safety of the lady client.