Review on 📱 Universal Mount Metal Plate with Adhesive for Magnetic Car Mount Cell Phone Holder - Happy Bell 14 Pack, Cradle-Less Air Vent Mount - Rectangular and Round, Black by Jason Holt

These metal washers that can be used to attach anything magnetic are what I was looking for to hold some light fixtures under cabinets, but the adhesive backing sucks. It took less than 10 minutes and the puck's light fell on the countertop. Before placing the metal disc, I made sure the surface was clean and dry. I've used them from another manufacturer before with no problems but couldn't find the same ones. The sizing is good and the metal disc nice and thin, just bad glue - not strong enough.