Hi, I have been using the bobbin washers for some time now and absolutely LOVE them. Whether sewing reenactment costumes, upholstry, or quilting I wouldn't be without them. I have one in each of my machines and just ordered spares because I panicked when I couldn't find my box of them yesterday! Quilting is a breeze with these. I couldn't recommend them any more highly. Get them, you'll never regret it.