SAP for agriculture and gardening, super absorbent polymer 1.Non-toxic,odorless,reusable,biological. 2. ... save water & nutrient SAP for agriculture and gardening, super absorbent polymer,water absorbent polymer:can swell hundreds of ... "for details)Packing:20kg/bag25kg/bag SAP for agriculture and gardening, super absorbent polymer,water absorbent polymer