Heavy-Duty Magnetic Paper Towel Holder Fits Jumbo Rolls, White, Suitable for Kitchens, RVs, Washing Machines, BBQ Carts

It’s also probably worth mentioning that magnetic paper towel holder is a product category in its own rate. There are versions of what you have that already have magnets built-in like this: https://a.co/d/05jVMZzA