【POWERFUL】 These robust ceramic magnets offer a magnetic pull with Grade 8 Magnetism and an internal strength of securely holding objects in place.Powerful and versatile, each measuring 1.0'' L x 0.75'' W x 0.1875'' H. Please note that ceramic bar magnets are dark charcoal gray in color and do not appear metallic. 【ECONOMICAL】Each set of products includes 150 strong magnets.This ceramic magnet is an economical choice for magnets. Only a small part of the cost of a rare earth magnet of similar size. 【DURABLE】They will not rust in any environment. Suitable for fresh water or salt water. Magnetism will always continue normal use. 【APPLICATION SCOPE】Science education in schools, children's science projects, namely suspended trains, hand-made at home, light work in the backyard or garage, etc. 【BUY WITH COMPLETE CONFIDENCE】If you are not satisfied with the magnet for any reason, we will provide a 30-day no-guaranteed money-back guarantee. ASIN B0DXPZ59PL Color Black Shape Rectangular Brand Name AplysiaTech Part Number L100H1875W075 Manufacturer AplysiaTech Model Number L100H1875W075 Material Type Ferrite Item Thickness 0.19 Inches Number of Pieces 150 Included Components Magnets Item Dimensions L x W x Thickness 1 L x 0.75 W x 0.19 Th