this is authentic Casio watch band made specific for rubber band style PAW1300 model. I had to think twice (maybe more) before ordering, as they are not cheap at all. New watch (even better / newer model) could cost only $200, and watch band is $45, you kinda have to evaluate, is it worth replacing the band or just upgrade to latest watch.

There's no instruction included, so you kinda have to use your imagination to remove four pins off the small metal cover ratch over the band. Took me about 10 minutes to replace them.

I just wish they were selling the same color as my original watch - now they look like turtle sitting on my wrist...oh well.