From spa facilities or hot springs to salons, promoting your brand out there is effortless with this square gel beads hot and cold pack! It's safe in both microwave and freezer for easy heating and cooling. The mask holds lavish gel beads and can be microwaved for 30 seconds for 90 minutes of heat or frozen to achieve 3 full hours of cold compress. It's recyclable, non-toxic and will not shatter when dropped. Directions are printed on the opposite side. PRECAUTION: merchandise will be HOT after microwaving. Condensation may potentially induce foaming until cool.