This item round shape office magnet made with plastic case and disc ferrite (ceramic) magnet with diameter 32mm and 12mm height.Though they are not so strong as neodymium magnet, but they can hold about 11pcs of A4 paper on white board.The most important is very economical.If you want a cheaper soltuion,it is a good for you.Normally done with red,white,blue,yellow and green colors.See below table of specifications.Custom package is possible.You can send me details.
Model
Dia38 x H12
38
12
4
11 pieces