TKB - RULER
Not available in the US.
Leather bracelet with engraved measurements in cm & inch.
Packaged in a metal tin with a big logo on top and colour sticker on bottom.
The ruler comes in three sizes. 
Lengths available are 33 cm, 38 cm and 43 cm. Suitable for wrist sizes 15 cm, 18 cm OR 20,5 cm. 
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Size 15 is 33 cm long.
Size 18 is 38 cm long.
Size 20,5 is 43 cm long.
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Colours in stock; Coffee, tan, red, orange, yellow and black.
The ruler is to be worn in double around the wrist and the size can be changed a bit by moving the button.
[The button contains small parts and must be tightened firmly to keep in place]