The coins with pegs (numbers set) are compatible with the Ten, Twenty, and Hundred Frames. They offer even more learning and play as your child places each into the dimples of the boards.
Product details: 100 coins with pegs (3 sets of digits 0-9, 8 sets of math symbols and various other symbols). The ink is printed directly onto the coins (no paint or stickers)
Dimensions: Diameter approximately 2.5 cm