Only one to buy
I've had these posts and a set from Basic Grey. The BG magnets began to peel...which left little metal shards and jagged edges to scratch my photos. NOT happy!
We R Memory Keepers Magnetic Posts are MUCH BETTER. They are rectangular in shape with rounded edges...makes them easy to pick up. They are strong and this set of 9 is just enough to hold down a 12x12. More importantly...NO PEELING.
These are the only ones I'll buy (as I continue to replace what the kids take).