DescriptionThe machine handle cover with good quality. The premium grip cover is made from food grade silicone. It can be sterilized by vacuum sterilization or autoclave. Designed with salient point, featured with vibration absorption and skid resistance.Features-Color: Black.-Material: Food Grade Silicone.-Size: About 5.20X3.50X3.50cm/2.04X1.38X1.38inch.- High temperature sterilization: 250 degrees-no deformation-no color change-no peculiar smell. - It can be applied to all kinds of pens, and the handle needs to be 27mm or more. - The silicone material is safe and hygienic, and can be used with confidence. - It is resistant to acid, oil and alkali, abrasion, chemical erosion and other environments, and still maintains a good feel and absorption effect. - The handle is to solve the long-term of the artist's skin with metal and wear out calluses.