Empty white frosted cube shaped wax clamshells that are made with recycled polypropylene (rPP) and is the most environmentally friendly type of plastic. approx 70 grams filled. When pouring into clamshells, please make sure your wax temperature is not too hot and pour slowly. DO NOT separate the clamshells by pulling on the lid. Ease them apart at the cube cavity end. Please make sure your wax is at the right temperature. Wax that is too hot will melt the clamshells or find any weak spots. Always pour on a protected surface.