CMS Magnetics® Super Strong Neodymium Magnets Ring N45 1-1/2"OD x 1.065"ID x 3/8" - Rare Earth Ring Magnet - Science Projects School and Magnetism Education: Amazon.com: Industrial & Scientific
Hillman Magnetic Ring in the Magnetic Tools department at Lowes.com
Color Ring Magnet | xUmp
Magnet Source™ 1-3/4" Ceramic Ring Magnet - 2 Count at Menards®
N50 Neodymium Rare Earth F23X5X16mm Round Ring Magnet - China Ring Magnets, N50 Magnets | Made-in-China.com
N42 Neodymium Ring Magnet
Ferrite (Ceramic) Ring Magnet | Eclipse Magnetics
CMS Magnetics Super Powerful N52 Neodymium Ring Magnet OD 2 x ID 1 x 1/4" w/ 46 LB Holding Power - Rare Earth Ring Magnet 1 Piece: Amazon.com: Industrial & Scientific
Ring Magnets 3 in OD x 1.5 in ID x 1/2 in Rare Earth Neodymium N42 - Applied Magnets - Magnet4less
Rings
1/2 x 1/4 x 1/8 Inch Strong Neodymium Rare Earth Ring/Donut Magnets N5 | totalElement