Hey everybody, I'm new to the forum so hopefully im in the right area

if anybody could help me out by steering me in the right direction to finding appropriate casters for my bass amp? I own a Fender Frontman 60w, its got 4 metal edge type supports on the bottom like most larger amps have. I haven't looked into it too much so I dont know what I'd need, I've seen wheels that you screw in via peg and you screw in via screws into a plate connected to the wheel. here is le picture:
Fender ® Frontman 60B
Thanks heaps in advance!
Mike
