Joint Protectors protect the pin of the cue butt from any accidental side pressure blows, keeping your cue pin straight and true so preserve the accuracy and straightness of your pool cue investment.Features:Protects Your Cue Joints/PinKeeps Cue Pin StraightPreserves Accuracy and Straightness of CueHans Delta BrandAcrylic 3/8×10 Fits Most McDermott Cues