Gypsum powder,Resistance to high and low temperature, practical accessory for craft mold making. Plaster of paris powder,Suitable for making DIY crafts mold, jewelry casting mold, architecture and decoration. Casting plaster,Stable and excellent characteristic makes it durable and non-deformation. Easy and convenient for operation, just mix the powder with appropriate water. Made of quality material, safe, non-toxic and non-allergic.