2011 new design environment friendly cold/warm bags with knitting set
1.Keep cold and warm
2.Heat 2 minutes keep 8 hours

2011 new design environment friendly cold/warm bags

Heat up in microwave oven:

wattage         time

500W             3 minutes 20 seconds

600w              3 minutes

1000w            2 minutes

New hand warmer, heat 2-3minutes it can be keep warm for up to 8 hours!

Put it in to the fridge, it could be cold bag, keep cold in summer.