Natural color of its own animal is the main idea of this straps. We call it Brown Retic, taken from Java Rock Phyton skin and we make the color as natural as possible. The combination of random color is just the art of this skin. We believe that this is probably the reason why people love this strap. This model was made specially for any Panerai watches with 44mm case diameter, such as : PAM000, PAM111, PAM005, PAM112 etc. You gotta believe us, that with this strap, you Panerai will extremely more beatuiful than you ever expected !