Redrock Rockwool Cubes – 6" x 6" Stone Wool Starter Blocks with 42/40 Hole | 4-Pack | for Hydroponics & Indoor Growing | Includes Twin Canaries Chart

I liked this product for its convenience it's easy to use and works great if you know how to use it and it is reasonably priced in just over a month my plants have grown 2' high and are Very healthy So far it has done its job very well (For Best Results maintain a very low humidity level to keep it on a more drying out side/ Higher humidity for a slower drying out period)

Works great soaked in my nutes for few hours then put 2 inch into this 6 inch and plants are already grown a foot in 8 days.

Great product

Would've given 5 stars if I recieved one intact. There was a deep indent across the top and the plastic covering was ripped down one side. That plastic covering is there to block light so roots can grow, I had to duct tape it up so I could use it.

Not sure if it's standard that they are slightly shorter than 6" but for the price it doesn't matter

Great item priced right if growers know what they’re doing

The product worked as describe. The price was right and shipping was speedy

Works great, as described! Thanks!