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The rockwool blocks are designed for starting seeds / clones and growing from start to finish. These are one of the biggest rockwool blocks on the market bought to you by Grodan, the world leaders in rockwool technology..
Rockwool Block Size : 15cm x 15cm x 15cm.
About rockwool plugs.
- Designed to facilitate the propagation of plants.
- Holds the optimum amount of water and oxygen.
- The plug is designed for single use and is not recommended to be used again.
- Perfect for both home and large scale growers.
The colour of the plugs vary due to the production process.
Sold per unit.