Material: food grade plasticSize: (due to irregular shape， refer to the actual product)0-9 (digital single diameter: 4.5-5cm about: 1.2cm)A set of 26 letters (a single diameter of about 4.5-6cm: high about: 1.2cm)36 sets of letters and numbers (single diameter of about 4.5-6cm: high about: 1.2cm)