Cuetec Billiard/Pool Cue Accessory: 2-Piece 3/8 x 14 Thread Billiard Cue Joint Protector Protects both shaft and joint threads Fits all Cuetec Cues with 3/8 x 14 Thread (will not fit other manufacturers' cues) Professional caliber quality from Cuetec - product one of the winnings brands in the world