Features: 1) Crystal soil is a new type of green environmental material . 2) It's non-toxic, odorles. Features:1) ... Crystal soil is a new type of green environmental material2) It's non-toxic, odorless and clear3) It ... and beautiful5) Ten colors available: red, pink, blue, yellow, purple, orange, green, light green, light blue, transparent6) Three shapes available: cubic shape, ...