Hello, and thanks for the question,
This site (JustAnswer) doesn't sell merchandise. However, I was able to find an online distributor that sells this particular watch band for Casio. Click here to view the watch image (first one on the page). Then click on the model number beside the image. This will display a page where the wrist band can be ordered ($5.50 + shipping). Let me know if you have any further questions.
Hope this helps!
Also, enter the model # ***** 'DBC-30' (without the quotes), omitting the '1253'.