UDTEE 2PCS Beautiful/Practical/Environmental Friendly Free Size Sapphire Blue/Hot Pink/Green/Purple/Orange Color(Random colors) Synthetic Aluminum Pencil Lengthener/Extender Holder UDTEE Extender Set lets you use almost every bit of a pencil before having to throw it away Standard size fit for most pencils Length:approx 10.4cm;Diameter:about0.9cm Color may vary from picuter shown. It becomes a writing instrument by making shorter pencils feel more balanced as it allows for a better grip.