ITEM NAME:4PCS Rubber Ink Pen Friction Special Students Rubber Remove Effectively Cle D7C9 100% brand new and high quality. Features: These erasers are friction rubbers,used to remove ink Unique Thermo-Sensitive gel ink formula disappears with erasing friction Erase and rewrite repeatedly without damaging documents Specifications: Material: Plastic + Rubber Color/Style: Sent at random Size: app.9cmx8cm/3.54inx3.15in Quantity: 1 Pc Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement..These erasers are friction rubbers,used to remove ink. Unique Thermo-Sensitive gel ink formula disappears with erasing friction. Material: Plastic + Rubber. Size: app.9cmx8cm/3.54inx3.15in.