Welcome to the store! Why this? The Maker has an issue (on some devices) where the rubber rollers on the paper holder bar shift from the edge of the cutting mat. This can cause cutting failures. What to do if your Maker's rubber roller rolls off track? You don't need to replace the rubber rollers on the machine, these C-clips can help hold the rubber in place. Slide the rubber back into place and use something to apply pressure to it, then snap each of these onto the roller bar where there is one and you should be good to go! Also, it's easy to use without disassembling the machine. Use pliers to snap the ring onto the bar if needed during installation. However, replacing the rubber ring requires disassembling the machine in an unorganized way, which can easily damage the machine. Rubber Roller Replacement For - Retaining Rings Compatible with for Maker/Maker 3 10 pcs per pack How to install? Slide the rubber back into place and snap the ring onto the metal bar where there is one (on the movable side of the rubber). Use pliers to facilitate installation if needed, it's not small but intentionally sized to prevent the rubber from drooping. Color: Black Material: Rubber Package Contents: 1 set x for Rubber Roller Replacement Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3cm. Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will provide you with the best solution!