Cultiwool 1.5" x 1.5" x 1.5" Cubes of Cultilene Rockwool without Shrinkwrap - Case of 2,250Description Cultiwool Cubes of 1. 5" x 1. 5" x 1. 5" With Shrinkwrap: The Cultiwool Rockwool Blocks support healthy root growth with an ideal balance of air and water. Even distribution of water and Electrical Conductivity (EC) contributes to healthy continued rooting. With superior water absorption and (re)saturation rates, these blocks excel in their functionality. They have a unique feature known as the Plant Comfort fibre structure, offering lower