Halatool 1.2 inch Rockwool Cubes 4 Sheets Fluffy Porous Hydroponics Planting Cubes for Soilless Cultivation Seedlings Cuttings Clone Plants (144 Plugs Total)

Great deal. As expected. 1.2” will squeeze into 1” trays well.

Easy to work with

I've never use rock wool before. I read instructions and watched a couple videos. I found these difficult to work with. They split apart and didn't stay intact when I tried using them.

Love rock wool. You get better bigger plants!! I highly recommend this. Just planted

I have purchased rockwool for my hydroponics from several different sellers on Amazon and other places. This product was the worst I have ever received. It is very coarse, and falls apart as soon as you touch it. I does not soak well and barely adsorbs any water. Good rock wool maintains it shape when cut and soaked and adsorbs at least twice its weight in water. This product does non of this it falls apart and barely holds any water, I can not see how it could even be a barely adequate grow medium.