Check the listing for details. Emjoi Micro Nail Buffer, Trimmer and Filing Replacement Rollers - Set of 4. Color: Pink, Green, Condition: New. Listed at 9.99 USD. Never be without replacement rollers for the amazing Emjoi Micro-Nail Trimmer. The rollers rotate at 360-degrees a second to gently trim and file nails to any desired shape and length. The set includes two types of rollers--the pink flex roller is for trimming nails and the green flex roller is for filing and smoothing.The Micro-Nail Trimmer allows you to trim and shape nails without the worry of cutting yourself, and this replacement kit allows you to continue your salon experience at home.How do I use it: Place the roller you want into the Emjoi Micro-Nail Trimmer unit (not included). Use the pink flex roller first to trim the nail to the desired length, and then use the green flex roller to file and smooth the nail. Only use on dry nails and never rinse or place the rollers in water.From Emjoi.Includes:Includes two Pink Trimmer Flex Rollers and two Green Filing Flex RollersCompatible with Emjoi Micro- Nail Trimmer device, not includedFor dry use only