Be sure to add me to your favorites list Casio Keyboard Replacement 3 1/4" inch (Measured Diagonally), 4 Ohm Speaker for some PT, SA, and SK Model Casio Keyboards, Made in Japan. This is a very good condition speaker for a smaller sized Casio keyboard. It is a 3 and 1/4" inch speaker (measured diagonally), made by Casio and used in some of the smaller sized Casio keyboards with the model number starting with PT, SA, and perhaps SK as well. It's 4 ohms and in great condition and working perfectly. You can see in the photo where the 4 screws used to screw it in are attached to the magnet in the speaker and they will be included as well. You will have to splice or solder the wires to get them to work with your keyboard obviously. Please make sure your Casio keyboard takes this sized speaker with these specs and they should make a great replacement! Though the speaker itself is 3.25 inches, when I measure the speaker diagonally it is 2 5/8" inches across, which might be helpful in deciding if this type will fit your Casio. The part # listed on the back of it is EAS-65P30SB, and it was made in Japan! Please check out my Store!