From the looks of it, that’s just a sprocket sandwiched by some polycarb.
They are just large nylon washers. I’m unsure on the exact size shown there, maybe 1"? You can find them anywhere, we got ours off Amazon.
From the looks of it, that’s just a sprocket sandwiched by some polycarb.
They are just large nylon washers. I’m unsure on the exact size shown there, maybe 1"? You can find them anywhere, we got ours off Amazon.