Ferrite Ring Magnets with Holes,OD40 x ID22 8mm Round Disc Donut Magnets,Circle Hole Magnets,Perfect Ceramic Circular for Crafts and DIY Pack of 8

Premium Quality:8 PCS Ring Ferrite Magnets with Holes! Practical Size - OD: 40mm(1.57"), ID: 22mm(0.86"), Thickness: 8mm(0.31") Ready to be used circle magnets for all your needs. Strength & Durability: AOAUTO ring circular magnets have high resistance to demagnetization, corrosion & oxidation. Our round hole ceramic magnets owns strongest magnetism to satisfy your various needs and applications. The power exists forever under 200°Temperature. Strong Magnets:We use strong ferrite with performance Y35, which is more magnetic than ordinary ferrite. Objects weighing 8 lbs can be easily fixed with a magnet, which is suitable for various DIY projects. Numerous Applications: Useful Magnets for Science Experiments, Classroom Magnets, School Projects, Holding, Home Improvement, DIY Projects, Speakers, Arts and Crafts and Much More Top Quality: These are the Highest Quality Magnets Made under ISO 9001 Quality Control Systems. All Tolerances are +/-0.002"