Heat shrink tubes by shrink ratio Radiation cross-linked heat shrinkable tubes with dual wall (adhesive inner wall) are available with shrink ratio 3 to 1 or 4 to 1. For any further questions or price requests, please contact us.Heat shrink tubes with 3 to 1 shrink ratio Heat shrink tubes with 4 to 1 shrink ratio Display Num 5 10 15 20 50 All