Special pin shot specifically made for magnetic tumblers. Though more expensive than standard tumbling shot, the Shor Magnetic Tumbler Pin Shot is about 1/2 the price of competitor's for the same shot. Dimensions approximately 0.5 mm diameter by 5 mm length. This shot is meets or exceeds the highest standards and is back by Shor's 30-day satisfaction guaranteed if you are not completely satisfied. Stainless Steel Pin Shot for Magnetic Tumblers