This necklace combines the aesthetic of the Victorian Era with the sleek style of a dog tag. --Materials and Construction: It is a metal (aluminium) dog tag that features an antique-colored metal bird cage upon a "wallpaper" background. Jeweled pieces have been added to bring out the femininity of the piece. --Dimensions: The chain measures 22 inches in length. The dog tag is .75 inches wide x 1.25 inches long. --Custom Length Request: Should you want the chain in a different length, please contact me via conversation. A longer length may have an additional charge.