Shrink tubing set in an attractive caseThin-walled heat shrink tubing with hot-melt inner adhesive to protect against moisture and corrosionTransparent tubing for long-term protection of marking solutions130 sections in 3 sizesReuse of the empty case to store nails, screws, etc.With ShrinKit 321, HellermannTyton is setting a new standard for shrink tubing: All ShrinKit 321 tubing covers a wide range of applications with the optimal shrink ratio of 3:1.