The Cue Cube Nickel Silver is a two-in-one tool that shapes the cue tip to a Nickel radius, while the other scuffs the cue tip to hold chalk and prevent miscues. Made of solid metal with silicon carbide, this device lasts and lasts. This product is used by professional players. The Cue Cube has a successful track record among pool players because it works so well and is reasonably priced. This Cue Cube Nickel Silver features:Precise Cue Tip Shaping to a Nickel (.4175) RadiusScuffs Tip to Hold ChalkGives Ultimate Ball Control and Prevents Excessive Wearing of TipMade of Solid Metal with Silicon CarbideSuccessful Track Record Among Pool PlayersMade in USA