Northern Tattoo Supply Koho® 100% biodegradable Pen machine Covers provide protection between patients and hard to clean machines, preventing cross contamination. By selecting kraft-boxed barriers you are helping to reduce landfill, wastage and environmental costs associated with un-necessary product packaging. 100 % PLA + (PBAT and cornstarch) biodegradable material. Easy to use barrier prevents cross-contamination Provides protection when working across the body or on large areas where the cord may come in contact with the tattooed area Individual covers, open on both ends 2" x 4” These sleeves eliminate contamination and make clean up effortless Does not fit Cheyenne Unlimited. 200 barriers per unit. Store below 30 degrees Celsius and away from sunlight to prevent premature degradation. Meets the standards of: UNI EN 13432 and CAN/BNQ 0017-088 For more info click here