Wax Melt Molds Size: 4.5 x 3 x 1 inches per clamshell, 1 x 0.9 inches per cube, 2.5 ounces per empty mold. Material: Healthy and environmentally friendly PET plastic, these wax molds are poured at 131°F-140°F (55°C-60°C) and will not interact with wax or dyes and will not affect the quality of the wax block. Strong and durable: the thickness of plastic mold is about 0.5mm, not easy to break, more durable, good sealing, not easy to leak, good shape and texture. Not easy to be damaged after normal use, reusable, long service life and high use value. Multiple uses: the molds can not only be used to make candles, but also for DIY chocolates, which can be shared with friends.