Sklar's Kevorkian Biopsy Punch is commonly used during colonoscopy procedures to excise tissue from the endocervix for biopsy. This product has a 3mm x 8mm bite with 4 lower teeth. There is a basket to catch the tissue sample after excision. The non-ratcheted, spring style handle features one large ring that can fit multiple fingers and has a horn on the upper handle for thumb placement.