Bests & Worsts Reviews from Amazon

All the bobbins I received were molded off center. They were off center to varying degrees, so obviously the seller is buying defective lots. An off center bobbin wobbles when it winds thread, so thread is distributed unevenly on the bobbin. I don't want to risk this causing a problem when the bobbin is used in my machine. The great price should warn purchasers that it is probably too good to be true - you usually get what you pay for.