Use these adhesive magnets with 3.5" round flat back buttons with recessed backs and dimple. Actual Size: 3" round adhesive magnets Click the following link if you need complete magnet sets which includes: Mylar, Front Shell, Back and Magnet.
Complete Fridge Magnet Supplies 3 inch Compatible with ProMakers, MultiMakers, Tecre, or other US Manufactured machines Not compatible with metric
3 inch Magnet Supplies
Ceramic Magnet – American Button Machines
Odds and Ends – American Button Machines
3.5 Button Supplies – American Button Machines
American Button Machine Button Maker
3.5 Button Supplies – American Button Machines
Odds and Ends – American Button Machines
Magnet Machine Square 3x3 – Magnets Pro
3.5 Coaster Button Set – American Button Machines
127*41.5mm Rectangle Magnet button machine complete set
Magnet Sets – American Button Machines
Odds and Ends – American Button Machines
Round Button Supplies – American Button Machines
The 75mm magnet button supplies complete set including shell ,mylar and magnet back., And suitable fo 75mm or 3 Inch button machine., DIY gift by
75mm 3 Inch round magnet button supplies set