Water Crystals polymer is odorless water-absorbing polymers used everyday in such diverse applications as planting/transplanting trees and shrubs, gardening gel, crafts, flower and vegetable gardens. These little water crystals absorb up to 400 times their weight in water, and expand to make beautiful clear gel-like water crystals. 1 oz. of material will absorb over 1 gallon of water.These polymer water crystals expand as water is added and contract as it evaporates. Due to the crystalline struc