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Lithium Coin 3 Volt 40 mAh Capacity 12.5 mm Diameter Overall size: 0.49" Dia x 0.08" H (12.5mm x 2.0mm) Other names: CR1220, CR 1220, N033 ND, N033ND, N033
For use in Glowbys LED Fiber-optic Light-up Hair Barrette, and other devices.