Heat Shrink Caps have a unique characteristic that separates them from all other caps.
Manufactured from high quality cross-linked polyolefin material, these caps are moulded and then expanded so that when heat is applied to them the caps recover to a
smaller size. The expanded version allows you to insert an item and then shrink the cap to adhere to the size and shape of the inserted item. An adhesive is included inside the cap so that the heat melts the adhesive to form a permanent bond, preventing moisture from reaching the contents.