crystal beads,hydrogel,water gel 1.non-toxic,ororless 2.color never fade 3.SGS MSDS, EN71PART 3 Reports Features and Function:crystal beads,hydrogel,water gel1) Crystal Soil is a new type of green environmental material, It is not natural Mud, it isCrystal Mud rich in nitrogen, phosphorus, potassium and others.2) can be used as long as 2 years3) It can absorb water up to 50-100times of its ...