Photos above were taken of both the front and back of these pendant although they look identical.
The two blue pendants are slightly different sizes. One is 57 x 28mm and the other one is 54 x 29mm. Both have sizeable holes down the center of the length.
The green pendant is 55 x 28mm with the hole down the center of the length.
The beige pendant is shorter at 53 x 32mm with the hole down the center of the length.
Colors in the photos above are a good representation of the actual.