DescriptionThis is a grip cover, which is made of high-quality materials, durable and can be used for a long time. High temperature disinfection 250 degree centigrade, no deformation, fadeless, odorless. The handle is designed to reduce calluses from the artist's skin caused by long-term with metal.Features-Color: Black. -Material: Silicone. -Size: About 3.80X3.00X3.00cm/ 1.49X1.18X1.18in- High temperature disinfection 250 degree centigrade, no deformation, fadeless, odorless. - Can be applied to all kinds of pen, handle need more than 27mm. - The inner diameter is 25mm, the outer diameter is 37mm, the height is 30mm, the stretching space is 3mm. - Resistant to oil, acid and alkali abrasion, chemical erosion, still maintain good feel, absorption - The handle is designed to reduce calluses from the artist's skin caused by long-term with metal.