446 Pcs Heat Shrink Tubing Kit-4:1 Ratio Adhesive Lined Marine Grade Shrink
446 PCS Heat Shrink Tubing Kit (4:1 Ratio). Includes 446 pre-cut (1.75″) tubes in 7 sizes from 3/32″ to 3/4″. 420 PCS Heat Shrink Tubing Kit (3:1 Ratio). 4:1 shrink ratio shrinks to one-fourth its size, providing a tighter seal than 3:1 or 2:1.