Material: 4mm High quality thickened elastic sponge material, natural fit the hand, soft and anti slip.
Outer Diameter: 30mm/1.18in, Inner Diameter: 22mm/0.87inch. Suitable for 21mm-23mm tattoo tube grips or tattoo machines.
Function: Prevent sweating and slipping at work, and prevent cocooning, easier to use for a long time.
Convenient: Prevent ink from splashing on the machine or handle, reducing the time to clean the machine later.
Portable: Lightweight and compact, easy to carry and go out to work, more convenient.