The necklace is made of .925 sterling silver and is all handmade. The big heart represents mother while the small heart represents her child. This is by far my sweetest design and I hope it touches all mother's hearts. /Engraving/ Kindly write down engraving content at the remark area when you place the order. Each pendant allows two characters (Can be English or Chinese) on the top and a date at the bottom. It can be lovers, family members, pets initials and the special date between you. Due to limited space, we recommend the content below: . https://c2.staticflickr.com/8/7917/45871808085_de3a6567ff_c.jpg . Write down the engraving content at the remark area when you place the order, or send me the content by using the tab "Contact designer" on your order page. Due to the limited area, it is recommended to engrave names and date only. /Material/ 925-999 sterling silver, oxidised. /Pendant Size / Approx. 13mm(W) x 11mm(H) /Necklace length/ 16", 18" and 18"+ 2" extension chain /Production time/ Since it is handmade with silver, it takes about 10-15 working days for production. Having said that, if you need it by certain day, please don't hesitate to contact me and we can communicate from there. /Shipping days/ Asia usually between 2-7 days. International is between 7-14 days. For more details please kindly contact me. /Packaging/ Hard and thick paper jewellery box with black velvet sponge inside. Box cover carries Green Rivor logo of three girls playing under a tree. *Please note that it is a handmade product, so each one will turn out slightly different from that in the picture.