These silicone bands are used for Sublimation tumblers. They will reduce the chance of ghosting and wrap the tumbler tightly and evenly.
Heat resistant up to 230c, high elasticity and easy to use.
These come in a pack of SIX. Four thick bands and two thin. (This will easily cover two tumblers).
I advise to still use heat tape on your Sublimation tumblers.