Cant go wrong with this jars. As they say, they are fast and sterile

These jars are well worth the money the ease of use and price point are fantastic,I couldn't recommend anything better!

First time trying to grow with the jars I bought. All 4 have mycelium growing and so far no contamination.. would/will buy again

I've used this item several times with good success as long as you follow the directions.

Good product and easy to use