1.Material: 316L stainless steel (Nickle and Lead free)
Namely:surgical steel

2. Surface: high polish

3. Quality:AAA quality
 
4. The Fashion Charm Lockets have several Shape, for example Circle, Heart, rectangle etc
 
5.About size:
Diameter size: 20mm, 25mm and 30mm
Thickness : 6mm
The inner height (Between the two Glass) about 3.6--3.8mm
Opening angle :30°-75°
 
6.Finished in : Matt or Shiny that as your request.
 
7.Toughened Glass
 
8.Color: rose gold, gold, silver,chololate, black color, all color is available.
 
9.Rust:None
Fade:None
Allergy:None