If you want an excellent hold and controlled release of stones, look no further than the Graspit™ Nitinol Stone Retrieval Forceps. They have an exception design with serrated wire edge to greatly improve the holding power so that there is maximum manipulation; this makes for an increased chance of stone retrieval. The way that the forceps were created allows them to get extremely close to the stone. These forceps come in 2.6F sheath for a better control than larger forceps; they are also available in the 3.2F size in order to allow for the removal of larger stones. These forceps are kink-resistant, and are flexible to alleviate the scope deflection.