include: 20 packs of pentagram wax, 20 packs of Heart-shaped pack wax and 20 packs of round pack wax. They are sized perfectly for wax melts and are suitable for a wide range of wax melt heaters. Healthy and Environmentally Friendly PET Plastic: Made of PET material, it is healthy, non-, environmentally friendly, and tasteless. The wax casting temperature for these wax models is up to 130F (55C), it will not interact with wax or dyes and affect the quality of the wax block. Clamshells: They are very strong, durable, tightly closed, easy to separate and fairly easy to open. Great for making wax melts: These are great if you're trying to make your own wax melt or melt an existing candle to convert into your wax melter. DIY Wax Melting Essentials: Great for making all types of wax cakes or soaps. There are 60 pieces in each set, don't worry about not enough, you can melt a lot of wax. Color: transparent Material: pet Package Contents: 60 Pack Wax Melt Containers Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.