There was similar question in the last two weeks that Gino posted a good solution to. I am sure you can get those twist bands from any hardware store, the ones Gino Showed we much nicer. I had to resort to ordering a roll of magnet from ebay 2 weeks ago and it showed up in 3 days and was cheaper than Grimco, who has it on back order indefinitely and I had ordered 2 rolls on the same day as the amazon order.