Review on Master Magnetics MSHC13X5 Magnetic Powerful by Calvin Chavva

Good product but needs revision. These are very strong magnets in a sturdy metal case. The plastic bracket is also durable and reliable. Magnets will stick to a flat surface or at a 90 degree angle. I installed 1/8 thick Sintra shields and the plastic holds them well. The problem is that the plastic is attached to the metal with double sided tape. The tape lasts about a week, and then the two parts diverge. The sign falls to the ground. This was done with an 11" x 17" sign, very light. I have ordered more of these sign holders but plan on gluing them together. I