Alex Tech 32pcs 1/2 inch Heat Shrink Tubing 3:1 Shrink Ratio - Black - Dual Wall Adhesive Lined Tube Wrap Electrical Wire Cable

Doesn’t fully shrink from 1/2” to 1/4”. I expected a 3:1 shrink ratio to be able to shrink in half.Doesn’t shrink tightly. When shrinking over textured nylon sheathing, it does not shrink onto the texture snuggly

Excellent... they do exactly what I need them to do. However, I should have ordered the 1/4 inch and not the 1/2 inch shrink tubing...