Features: Eco-friendly materials, non-toxic, no pungent smell, can be used for recycling. No impurities, better hand feel, uniform color distribution, easy to shape. Hardness, viscosity, cutting comprehensive performance is good. A well-made model can be preserved for long time without deformation. Fine texture, suitable for all kinds of clay sculpture. Specification: Weight: approx. 200g/7.1oz Size: 14 * 7.5 * 1.3cm / 5.5 * 3 * 0.5in Color & hardness: 01 skin color, hard; 02 earthy yellow, hard; 03 coffee, hard; 04 gray, hard; 05 skin color, medium hard; 06 earthy yellow, medium hard; 07 coffee, medium hard; 08 gray, medium hard (Optional) How to distinguish the hardness of sludge? Hard mud: Hard mud is suitable for small or fine carving products, details of the part is not easy to deformation, after cooling to restore the original hardness. Medium hard oil mud: suitable for large-scale sculpture or beginners sculpture, kneading, scraping oil mud easier, cold out to restore the original hardness. Soft oil mud under normal temperature can easily break bending, hard under normal temperature can break bending, hard is not easy to break bending, three can be mixed with oh Both the hard and the hard need to warm up to soften the operation, the original hardness after cooling can be used hot air gun, blower blowing soft heater soft, oven, or separate bag in 55-70 degrees warm water bubble. Package List: 1 x Modeling Clay