Used by creature designers and monster makers across the globe, Monster Clay Premium Grade Modeling Clay is a re-usable professional oil/wax based sculpting medium featuring a super smooth, low tack, low melting temperature formulation. Monster clay is non-toxic and sulfur free, can be used with platinum silicone molding compounds, and can be re-used and re-melted indefinitely. Much like taffy, Monster Clay exhibits a unique elastic quality when warm. Monster clay melts easily to a pourable consistency and is great for making copies of life casts where changes are needed. Each 4.5lb tub of Monster Clay Premium Grade Modeling Clay is individually packaged in a convenient, oven-safe container. What’s more, Monster Clay has a lower density than average oil based clay, which means that in every tub of Monster Clay you get roughly 25% more clay per pound without the added cost.