These wooden slices have 7 different sizes, Blank plywood circles size: 2pcs diameter 20cm/7.87", 2pcs diameter 16cm/6.3", 10pcs diameter 10cm/3.94". Square Wooden size: 2 pcs(20x20 cm/7.87"x7.87"), 2 pcs(16x16 cm/6.3"x6.3"), 10 pcs(10x10 cm/3.94"x3.94"), 10 pcs(8x8 cm/3.15"x3.15"), 25 pcs(5x3.4 cm/1.97"x1.33"), the thickness is 2 mm, Various sizes can be made into different DIY Woodcraft.