As a second step, Swifty Final Finish wheels and cylinders provide a polished surface without rouge. Available in very fine & ultra fine grits. Wheels are ¹⁄₈" thick, cylinders are 23 mm long and have ¹⁄₁₆"dia. holes in one end for threading onto tapered Miniature Point Mandrels (items 140-293, 140-295, and 214-310). see related products below for recommended miniature mandrels. Sold in packages of 20. Made in Italy.