Wirefy Heat Shrink Tubing Sold by the Metre with Adhesive 15 m - 3:1 Shrink Ratio, Double-Walled Heat Shrink Tube Set, Black, Diameter 7.9 mm : Amazon.de: DIY & Tools
Schrumpfschlauch Box Isolierschlauch 5 meter Rolle 19 mm/9,5mm schwarz Meterware | eBay
Schrumpfschlauch 2:1, Innendurchmesser 2,4mm (rot), (VE 1Meter) # 61220 | Shrinking tubes | Electric flight accessories | All you need for electric flight