1.material:hign quality EVA, sandpaper,PS board 2.common size:178*20*3.5mm ... 4.accept OEM orders Specifications:Materail: EVA,(sandpaper),pp board,emery Size: 178*20*4mmColor: customizedDesign: customizedLogo print: ... or not is based on this part.Good quality file is easy to shape the nail and ... use for our products is high resilience non-toxic EVA Layer 4 : PS Board,the hard part to stand the ...