MATERIAL: The beehive foundation board is made of high quality plastic and natural beeswax, sturdy and durable, not easy to deform. SIZE: HIVESWEET yellow hive beeswax coated foundation board measures 8-1/2-Inch. EASY TO USE: the beeswax board can be easily slid into the concave hive frame without reinforcement, simple to operate, making your beekeeping more convenient. Package content: hive wax coated foundation board contains 20 pcs 8-1/2-Inch multiple sizes quantity for you to choose. Note: If you meet any problem with the package you received, please contact us in time, we will solve it for you, please don't worry. Deep Foundation