The necklace is made of .925 sterling silver plated in rose gold and has the exact same structure and appearance as a paper origami heart. The size is 8mm so it's very delicate and good for people who like simple but meaningful accessory. The origami design will surely bring up a lot of happy memories! What you see now is the mini size 8mm. We also have regular size 12mm available here and that will allow you to engrave more content: https://hk.pinkoi.com/product/Hre1w6dA /Engraving/ As this is a mini size, you may choose to engrave 2 Chinese characters or 2 English letters at the back of the pendant. Simply choose the engrave option when you place the order, and write down the engraving content at the Message to the Designer. /Material/ 925 sterling silver /Pendant Size / Approx. 8mm /Necklace length/ 16" 18" 18" + 2" extension chain *Please note that it is a handmade product, so each one will turn out slightly different from that in the picture. ..................... Production and Shipping Time ...................... /Production time/ Around 10 working days, not including weekends and public holidays. If it is urgent, please contact me and we’ll see if we have available stock to ship out immediately. /Shipping time/ Asia: 2-7 days. International: 7-14 days. *Shipping time does not include Production Time. /Packaging/ Hard paper jewellery box with black velvet inside, with Green Rivor logo on the lid. .............................. Shipping Method .............................. Free shipping for local or international. <Hong Kong> 1. Hong Kong Post Registered Post (Free Shipping) This is our default shipping method. 2. SF Express (Free Shipping) We can use SF to send to SF Collect Station or to commercial/industrial address. SF CANNOT be used for residential address. If you choose to use SF, please write the following info at the "address" area: -Write down "SF Express" - SF station code (or your office address) - SF station address *While we are required to use SF plastic bag for each parcel, for environmental concern, we highly recommend you to use HK Post service instead. < Taiwan, Macau and other oversea countries > Hong Kong Post Registered Post (Free Shipping) -Please provide your full name in order to sign and receive our parcel. - We CANNOT use SF to send oversea since it is prohibited to send 925 silver items to oversea through SF.