7 7mm 7 8mm 7 10mm 7 15mm 7 30mm. Only suitable for people aged 14 and above. Magnet have strong magnetic properties. Do not swallow them. 5 15mm 5 20mm 5 25mm 5 30mm. 6 10mm 6 12mm 6 15mm 6 20mm 6 25mm 6 30mm.
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