Feature●ENHANCE YOUR ROCK TUMBLING RESULTS: Experience superior rock tumbling like never before with our MJR Tumblers Stainless Steel Media Pins. Unleash the power of our Stainless Steel Media Pins to achieve impeccable results in your rock-tumbling endeavors. Transform rough stones into stunning, polished gems with ease. Thanks to the precision and effectiveness of our top-grade materials, your rock collection will be elevated to a whole new level of brilliance!●PERFECT FOR ALL STAGES OF ROCK TUMBLING: Achieve rock-solid results at every stage of your tumbling journey. This versatile solution is designed to excel in all stages of the rock tumbling process. Whether youre starting with coarse grinding, moving on to intermediate smoothing, or aiming for that perfect final polish, our media filler has got you covered. With our Stainless Steel Pins, expect nothing less than exceptional results throughout your tumbling adventure.●WIDE VARIETY OF SIZE OPTIONS: Find the perfect fit for your rock tumbling needs with our wide range of size options. Whether you have a small batch or a larger load, our Rock Tumbling Media Grit is available in various pound options. This means you can select the ideal amount to ensure optimum results for your project. No need to worry about wasting excess media or running out midway through your tumbling process. Choose the right quantity and achieve amazing tumbling results every time!●COMPATIBLE WITH ANY BRAND TUMBLER: Achieve impeccable polishing, smoothing, and shaping every time. Trust in the power of our superior grit that leaves no stone looking dull, delivering remarkable results every time. Designed to work seamlessly with tumblers from any brand, ensuring you can achieve exceptional results regardless of your tumblers make or model.●COMES WITH FREE POLISHING INSTRUCTIONS: As a gift, we provide you with easy to comprehend and user-friendly polishing instructions, completely free of charge. With step-by-step guidance, youll be able to effortlessly transform your rocks into stunning gems in no time. Our commitment ensures that you have all the resources necessary for a successful and rewarding rock-tumbling experience.Description Stainless tumbling media pins. Cylinder in shape. This media is magnetic. The stainless steel media is designed to work with not only brass, but many other applications as well. Pins will not need to be replaced, as they will not wear out. The pins are .047" diameter, or 1.2mm, and .255" length, or 6.5mm length.