Strong and :The thickness of the plastic mold is about 0.5mm which is not easy to break and is more ,the seal of it is tight that is hard to leak,great the shape and texture. Long Service Life:The mold is made of high-quality PET material and is a excellent production,not easy to be damaged after normal use,can be reused which has a long service life and high use value. Each clamshell mold is 4.5 x 3 x 1 inch and each mold has 6 Squares,every Square is 0.9 x 0.9 inch,the total capacity is 2.4 ounces,perfect for making different kinds of wax Multiple Use:Molds can be used not only to make candles,but also can be used to DIY which can share with friends to make your weekend more fulfilling and fun.