Bath Toys Educational toys Challenge Shimajiro A set of black plastic numbers and symbols, approximately 5cm in size. A set of 13 pieces: 0-9, +, -, and =. If there are any specific numbers you want, please comment and I can change the numbers. Have fun playing with your child who is starting to learn numbers! You can play with them as blocks, or you can attach magnets to the back and play with them in the bath. These are handmade items, so there may be some individual differences. Thank you for your understanding.