uxcell 85mm/55mm PVC Heat Shrink Tubing Wrap Black 2m 6.5ft for 18650 Battery Pack : Amazon.com.au: Home Improvement
The Resistance Diatium Battery Wrap Heat Shrink Fits 18650 - Etsy Australia
2M Green Blue Dia 55mm Width 85mm For 4pcs 18650 Battery Pack Wrap Sleeve Insulation PVC Heat Shrinkable Tubing Shrink Tube | 18650 battery, Pvc, Blue dia
How to Protect LiPo Batteries from Crashes and Physical Damage - Oscar Liang