Description: Cordless design with easy operation for in-home and professional use on both natural and acrylic nails. This high-efficiency grinding head allow you to effortlessly file, buff, shine, and shape your nails just like at the salon. The product is made of ceramic and steel. The length of the product is 6 mm , the width of the product is 14.7 mm, the diameter is 2.35 mm . Suitable for home use. Item Name: Nail Grinding Head Material:Plastic,Ceramic Size: 1: 4cmx1.47cmx0.6cm/1.57inx0.58inx0.24in 2: 4cmx1.47cmx0.6cm/1.57inx0.58inx0.24in 3: 7cmx7cmx1.4cm/2.76inx2.76inx0.55in 4: 4cmx1.47cmx0.6cm/1.57inx0.58inx0.24in 5: 4cmx1.47cmx0.6cm/1.57inx0.58inx0.24in 6: 4cmx1.47cmx0.6cm/1.57inx0.58inx0.24in 7: 4cmx1.47cmx0.6cm/1.57inx0.58inx0.24in 8: 3cmx2cmx0.2cm/1.18inx0.79inx0.08in 9: 4cmx1.47cmx0.6cm/1.57inx0.58inx0.24in Notes: You will find more amazing products if you visit our store. Due to the light and screen difference, the item's color may be slightly different from the pictures. Please allow slight dimension differences due to the manual measurement. Package Includes: 1 X Nail Grinding Head