SEL011 N-Ferno ® 6990 Hand Warming Packs Dimensions: 3-3/4" x 2" Hot Reusable: Single Use ERGODYNE #16990
- Dimensions: 3-3/4" x 2"
- Hot USE
- Reusable: Single Use
- To activate, just open the pack
- All natural ingredients heat up when they contact oxygen
- Seal from oxygen in Zip-Loc bag and reuse the next day
- Hand style warms up to 8 hours