CMS Magnetics® Grade N52 Super Strong Neodymium Magnet Ring OD1.26" x ID 1/2" x 3/8" - Rare Earth Magnet Ring for Classroom, Science Project and DIY Applications - One Pack: Amazon.com: Industrial
Neodymium Rare Earth Magnets | Master Magnetics
High-strength 'rare earth' magnet : ID 9 : $2.50 : Adafruit Industries, Unique & fun DIY electronics and kits
Neodymium Rare Earth Disc Magnets- 10mm x 5mm (.39" x .20") Grade N52 Highest Grade Package of 2 Nickel Coated-Ultra Powerful 14k Gauss - Walmart.com
Ghent 6-count Rare Earth Magnets Black (hmyremag6) : Target
3/8 x 1/8 inch Neodymium Rare Earth Disc Magnets N48 (30 Pack) | totalElement