8MM Classic Concave Wedding Ring is Produced with Classic Convex Modern Production Line. It does not bend or collapse. Interior Design with Charnel - Does Not Cut. It is extremely lightweight and useful. The product is entirely made of 14 carat gold. Does not darken. It can be produced specifically for you in the size you wish. (Intermediate Size Manufacturing such as 13-5.) It is sufficient to provide information with your order number after ordering. Names, Dates and Symbols can be written on the inside using laser machines. (Just send a message with your order number.) The product has a Lifetime Warranty. It weighs 1-65-2-40 grams and varies depending on the size.