These magnets are very well made and nicely machined not to scratch. They are strong, like forcefield magnets and can hold 10 sheets of paper with just one magnet.
These are called fridge magnets but can be used for all kinds of things. In my house I use them to hold the lace drapes on my metal door in the laundry room so the drapes stay put. I also use them for doll making by gluing one inside the head of the doll and gluing another one on a pacifier that has the nipple cut off so the doll has a magnetic pacifier. I glue a round circle of felt on the magnet on the pacifier so it doesn’t hurt the dolls face.
There are other uses for these magnets. I also use them on the legs of my metal desk in my office for convenient easy to read notes. These magnets come in a plastic case, which I keep put up and out of little finger’s reach.
The listing for them states:
★ 50PCS refrigerator magnets,one magnet can hold up to 10 sheets of print paper.
★ Small size but widely used,perfect for magnetic push pins, office magnets, whiteboard magnet, map magnets etc.
★ Disc magnet shape, machined silver magnet finish,Each Round fridge magnet is 10 x 2mm.
★ Refrigerator magnets NOT for use on glass magnetic boards, and they DO NOT stick to stainless steel.
The magnets measure 10 mm x 2 mm and there are 50 in the package. The magnets are neodymium and are graded as N35 & N52. The quality is very good.
Here is where I got mine: http://www.amazon.com/gp/product/B0788SRZYY