I love these. I bought my first set years ago and no regrets. Yes, at first they might be a bit tight, but it doesn't take long before the floss/thread pulls out smooth. It doesn't put any stress on the thread as it feeds through the hole either. I do a lot of stitching "on the go" and these are great because the thread stays clean and doesn't tangle. Before I had the Bubbles, if I dropped the spool it would unwind as it rolled across the floor. They also make great gifts and donations to fundraisers.
So glad you like the bubbles, they are great for organizing your perle cotton.