Money-back Guarantee: You just try it at our expense; If you are not satisfied with our products, PLEASE send us message letting us know and we will refund your money to you. Perfect Gift Ideas: You can buy it to treat yourself, or just wrap it as a gift and she will love it!. Just Right Size for Holding: The 3.4 inches buffer block is just right, neither too big nor too small; it is in your palm of hand to polish, or to take it on the go for traveling;. Long Lasting and Washable: the grit on the surface of buffer blocks are consistent, washable and durable; works great for buffing acrylic nails, natural nails, powder dipped nails and false nails, also for getting the nail gel/glue off at home; The foam board can take better care of your nails and will provide you consistent and pleasant filing experience;. Double-sided with 100/180 Grit: so you can choose based on your preference, where coarse grit side is used to polish the uneven surface of the nail, and the fine side used to polish the grease on the nail surface;.