AAMA Martial Arts Taekwondo Karate Pine Breaking Board comes in 5 different sizes: 2", 4", 6", 8", 10" with width approx 11 to 11.25" (width size varies). And each sizes comes in two different thickness. 3/4" & 3/8". For all 3/4" thickness, size 2" & 4" comes in 25pcs per bundle and other sizes 6", 8" and 10" ships in 50pcs per bundle. 3/8" thickness will be double the amount of the 3/4" thickness bundles.