Amazon.com: uxcell 20pcs Battery Wrap PVC Heat Shrink Tubing 29.5mm Flat Width for 18650 Power Supplies 5m Length Blue : Industrial & Scientific
DIY Battery Pack PVC Heat Shrink Wrap Tube,Black 150±3MM Flat Width 3M Length for Big Battery Pack Power(If You are not Sure What Size You Need,Pls Email to me When u Place