15mm round
Pack of 100
Please note: The intended use of these magnets is for educational purposes only. Adult supervision is required at all times. Not suitable for children under the age of 8. Seek immediate medical attention if magnets are swallowed or inhaled. 
These are strong powered magnets and can cause medical issues if digested. These magnets are not a toy and are not intended for early learning centres or younger age groups in school or learning or unsupervised environments.