MathLink Cubes Numberblocks Activity Set brings math learning to life with friendly characters from the hit TV series Numberblocks. Children see how numbers really work as they build their own Numberblocks from 11 to 20 by connecting them with classic MathLink Cubes. Set includes 155 MathLink Cubes Numberblocks, 52 faceplates, 44 stickers, 10 numberlings, 10 character cards, 15 double-sided reusable activity cards, Fourteen's skateboard / helmet, Twenty's top hat, a write / wipe pen & activity guide. Activity set is designed for children ages 3 & up.