Magnetic Toolholder

The Toolholder need's 5 Neodym Magnet to be inserted in the back. Mounted to the wall with doublesided tape.Size of the Magnets should be Ø 20 mm and up to 3.4mm. the Magnets i'm using are Ø 20 mm, Height 2 mm, holding 2.3 kg, Neodym, N35,