This item can hold the pen in the to ensure that the drawing and cutting operations are perfectly aligned. Perfect for each pen model to obtain accurate height. Easily identify each of your adapters with a different . Features -Color:Assorted Color -Material:Plastic - Size: 3.00X2.30X2.00cm/1.18X0.90X0.79in - Package Included: You will get enough pieces of pen adapters. Those pen adapters come in different colors. - These pen adapters different color making it easier to identify and have more writing options. - Durable Material: Pen adapter is made of quality plastic, which has strong impact resistance and stable performance. - Wide Application: Replace original pen holder with our pen adapters to allow the use of other markers and pens. - Easy to Use: Pen adapter is super easy to use. And each adapter fixes the pen in the exact centers, ensuring the precision of the operation. Package list: 17 adapter