Clamshells contain 6 cubes of fragranced soy wax. They are a larger alternative to our round wax tubs. The fragrance is released by melting the wax in a wax burner (candle lit or electronic, whichever you prefer). Simply place one of the cubes into a wax burner. We do not recommend you use the whole clamshell in one go as it may overspill in your burner. A bigger piece of wax will not give you a stronger fragrance, using a small piece will smell just as strong as a bigger piece. Please recycle all packaging where possible.