I have purchased a few online both official Ibanez and aftermarket. I think you can find them on Amazon. But my trem is an 80s original Ibanez trem from 87 and they do not fit as well as I like. People say the plastic rings need to be worn in and maybe they do. I think you can also try Ibanez rules.com as well. He has parts for sale. I think the part number is 2LE21B. Just an FYI