Need an extra-wide magnetic strip? BuyMagnets.com has got you covered. Not only are these magnets wider, but they also have a greater width between their poles. Type W. magnets are available in holding forces of 50lbs, 58lbs, and 91lbs–with 91lbs being the greatest holding force of all our magnetic strips available. Sold by the roll, these magnetic strips feature multi-pole magnetization for maximum magnetic strength. Type W. Magnetic Strips are non-adhesive, flexible, and have their maximum holding power concentrated on one side.