Colour of the water droplet indicates:
* Blue – Below 35°C —> cold to warm
* Green – 36°C – 65°C —> warm to hot
* Red – Above 66°C —> very hot
Colour: Blue, Red, Black, Pink
Material: Double layer 304 stainless steel, food grade PP plastic lid
Note: This product can be customised into a corporate gift or wedding favor. If you are interested to purchase this product in bulk, please send us a product enquiry.