Review on WMB 220 Magnetic Retractable Barrier Authorized: Secure Your Space with ease! by James Pfettscher

Some of these devices were purchased for industrial use. The 4 SMALL magnets are so weak that the device will slide on any painted metal surface they are attached to. Now I understand why the very reliable BannerStakes model was so much more expensive. I'll be returning them and plan on spending the extra $$$ on something that works.