MagiDeal 1pc Adjustable Pencil Extender Holder By using a pencil extender you can use almost every bit of a pencil before having to throw it away. It also makes shorter pencils feel more balanced and allows for a better grip. Adjustable Pencil Extender Lengthener Holder fit 7-9mm pencil The extender have a robust screw fitting to hold the pencils securely Material: Aluminum alloy