Tyco Reusable Gel Hot/Cold Packs 5" x 10"

Tyco Reusable Gel Hot/Cold Packs (5" x 10") are safe, non-toxic and non-caustic. It holds its temperature up to 30 minutes long. Packs can be easily cooled in a freezer or heated in boiling water for safe, effective hot-cold therapy similar to a heating pad.