Please pay attention to the following two points before purchasing: ​ ​1.Regarding the thickness of the product: thin 1mm ​ ​2.Regarding the product color, if you need luminous effect, you can only buy luminous color, the luminous color is green during the day. ​ ​Features ​size:40cm(is just a reference, you can adjust the size freely, For example, a40 cm wall clock can also be placed in 50 cm according to your wall needs, 40 cm is only our recommended size) ​ ​ ​Regarding the style of luminous, it need light or daylight first, then luminous effect will appear in the dark. ​ ​Package size：15cm*10cm*4cm ​ ​The hour hand is 9.3 cm long ​ ​The minute hand is 13.5 cm long ​ ​The second hand is 15 cm long ​ ​The caliber is 7.8cm in diameter