Ferrite Blocks Ceramic Magnets 1 7/8" x 7/8" x 3/8" Rectangular Magnets, Grade 8 - for Crafts, Science and Hobbies - 12 Pieces

* Grade 8 ceramic magnet material with 3,850 Gaussian internal. Each piece can provide 29 pounds of holding force under ideal conditions. * This ceramic magnet is an economical choice for magnets. Only a small part of the cost of a rare earth magnet of similar size. * They will not rust in any environment. Suitable for fresh water or salt water. Magnetism will always continue normal use. * Science education in schools, children's science projects, namely suspended trains, hand-made at home, light work in the backyard or garage, etc. * If you are not satisfied with the magnet for any reason, we will provide a 30-day no-guaranteed money-back guarantee.