MagiDeal &Phi;20mm &Phi;25mm &Phi;30mm Non Slip Heat Shrink Tubing Textured Grip Fish Rod Racket Sleeve Handle - Black, &Phi;25mm(43mm Flat) Material: silicone rubber Shrink Ratio: 2:1 Minimum Shrinkage Temperature: +60 Full Recovery Temperature: +105 Operating Temperature: -55 to +105