Each button contains an NFC-chip with a unique number. It has two holes to easily attach it to objects, such as clothes. The button is made of PPS and is washing machine resistant. The shape of the button is round, with a diameter of 25mm. The thickness is 2mm: slightly thicker than a normal button.
|10||€ 20.00||€ 2.00|
|20||€ 30.00||€ 1.50|
|50||€ 65.00||€ 1.30|
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