I bought the heat gun and I love it because I can use it on my cookies and my packaging. The heat gun will only shrink wrap with specific bags, not celo. The bags I bought for the heat gun feel much different than the celo bags. Celo bags have a softer touch, and the heat gun will shrink wrap the kind that feel like a hard plastic. They are called shrink bag and I bought different sizes through Paper Mart, comes in 1000 per box. I used the shrink wrap and gun on my cookie bouqets at Christmas, and found they make a nice presentation, although you can heat them too much and cause a hole to appear in the plastic. Makes it difficult to remove but keeps them fresh and nice looking.