Ferrite Ring Magnets - 2.2 lb Pull - 290 Piece Display These ferrite ring magnets are useful for home, office, hobby, craft, classroom, shop, and light-duty mounting applications where a round magnet with a center hole is needed. The 290 piece display format is well suited for bulk use, resale displays, repeated project work, or keeping a large supply of ring magnets available at the bench. Each ceramic ring magnet has a 2.2 lb pull strength, 1-1/4" outside diameter, 3/8" inside diameter, and 3/16" thickness. The center hole makes these magnets useful for positioning, mounting, alignment, display work, and magnetic holding tasks where the magnet needs to fit around a post, screw, peg, or other centered feature. Bulk Ceramic Ring Magnets for Hobby, Office, and Shop Use This display includes 290 total ring magnets, packaged as 29 magnets per roll for easier handling and storage. Ferrite magnets are a practical choice for general-purpose magnetic holding on compatible ferrous metal surfaces, especially where a simple round magnet with a hole is more useful than a solid disc magnet. Product Type Ring magnets Material Ferrite / ceramic Quantity 290 pieces Package Format Display pack Roll Packaging 29 magnets per roll Pull Strength 2.2 lb Outer Diameter 1-1/4" Inner Diameter 3/8" Hole Size 3/8" Thickness 3/16" Common Uses Home, office, hobby, craft, classroom, shop, display, and light-duty mounting applications