Pin size 2 1/4" long, 1/4" wide. Very good quality craftsman work. 18KT yellow gold, stamped 18K, and designer name in Chinese.
To open it, put down the small button then push right. This item is in the category "Jewelry & Watches\Vintage & Antique Jewelry\Brooches & Pins". The seller is "pablosalon" and is located in this country: US. This item can be shipped worldwide.