To prevent goo, itch, and bad smell by reducing frequencies that an ingredient has direct contact with a hand by enabling a user not to drop an ingredient from his/her hand by slippage but to firmly grip the ingredient when gripping and peeling or grating the gooey root vegetable or catching and cooking fish.

When a finger band body 1 with many projections 2 arranged thereon is fitted to the finger, the ingredient is firmly gripped. Hooking pawls 4 are engaged with hooking grooves 3 by gradually fastening the band in accordance with the thickness of the finger.