Cultiwool 1.5" x 1.5" x 1.5" Cubes of Cultilene Rockwool with Shrinkwrap - Case of 2,250Description Cultiwool 1. 5" x 1. 5" x 1. 5" Cubes with Shrinkwrap: These high quality Cultiwool cubes promise an optimal ratio of air to water, contributing to conditioned root growth. They are designed with the capacity for prolonged rooting, courtesy of their even water and EC distribution. Noteworthy Water Absorption and Saturation Rate: These Cultiwool blocks have been designed with an exceptional rate of water absorption and the ability to