... the latest high quality imported environmental siliocne,100% of the notebook keyboard custom-made.Good abrasion resistance, ... 4, anti-yellowing can reach 4H; 5, texture is soft high elastic, ultrathin ( ... about 0.35 mm), high transparency, tactility is admirable. 6 ... keyboard can positioning, without paste and tailoring, 7, use convenient, closely coated on clavier surface, ...