The 5 1/2" Castroviejo "GG" Needle Holder with curved serrated jaws and a lock is a precision instrument designed for delicate procedures like microsurgery and ophthalmic surgery. The curved serrated jaws offer a secure grip on needles, providing enhanced control during suturing, especially in tight or curved areas. The locking mechanism ensures the needle is held firmly in place, allowing for one-handed operation. The 5 1/2" length strikes a balance between reach and maneuverability, making it ideal for fine, intricate surgical tasks.