The knobs always break on these ryobi table saws. This is a replacement for them. Color will be black. Requires 1x 6mm Allen screw to attach. How is it made? This item is made from 100% solid PETG which is FDM 3D-Printed on commercial Machines! These parts are guaranteed to be acceptable strength for the application. How is it shipped? USPS! Shipping is free for you if you're located in the continental United States! Is there a warranty? Yes! This product comes with a lifetime replacement warranty. If it breaks, simply send us an image of the broken part and we will ship you a new one! I think there?s a problem with my order? No worries, we have you covered! If you have any issues whatsoever, please contact us! What else do you offer? We offer a wide variety of 3d print services such as design and print on demand in a variety of materials at a fair price. Simply send us a message to get started designing or printing your custom part today for any project you need and check out our profile for our other items! Designed by OZLOYA