KLOUD City&reg; Pack of 30 Assorted Colors Plastic Pencil Cap Pencil Shield Pencil Extender Holder Package included 30 Pcs pencil cap (Blue Orange Green) Protect pencil point from breaking and avoid leaving blot in bag Good gift for friends or classmate etc. Used for Hexagonal pencil,Triangular pencil,Circular pencil Inner diameter:5/16 inch,length1 3/4inch