Nata® 320 Eraser With Protective Office Case. + Edition Series Turquoise Colour. The Eraser Case Incorporates A Biocide. The Biocide Is Silver Phosphate Glass (Cas 308069-39-8) With Antibacterial Effect. Ideal To Improve Hygiene At School, In The Office, In Environments In Contact With Food And Sanitary Environments. The Case Has An Anti-Slip Surface, Making It Easy To Grip. Original Design Created By Milan’s Own R+D Department. Nata® 320 Plastic Eraser For Erasing Pencil Strokes From Any Surface. Milan Erasers Are Manufactured In Spain Since 1918.