HellermannTyton Heat Shrink Heatshrink w/o adhesive 612812 - HellermannTyton 333-30903, HellermannTyton's 333-30903 heat shrink tubing is a thin-walled, transparent polyolefin with a 3:1 shrink ratio. It is flexible and pliable, ideal for cable insulation and protection. This product is typically used for electrical and electronic applications requiring insulation and bundling without adhesive. HellermannTyton 333-30903 Heatshrink transparent 9mm 3:1 halogen-free