Dr. Slick Clip-On-Reel, Silver, Steel Cord, "O" Ring, Our pin-on reels feature a tough steel cord with a 20-inch draw and a heavy duty pin. Best suited for light accessories like nippers, files, and floatant. The "O" Ring features a tough steel cord with a 20-inch draw, and is best suited for light accessories like nippers, files, and floatant.