Need a strong, simple way to hold things in place? These magnet fasteners are super handy. Each one is a rectangular nickel-plated steel channel that's 3 inches long, 0.878 inches wide, and 0.25 inches tall. Inside is a ceramic (ferrite) magnet that's magnetic on one side only. They can hold up to 22 pounds on contact with a smooth, flat steel plate (vertical test)—though expect less if the surface is painted or if you're dealing with sliding forces. They don't have mounting holes; instead, you attach them using double-sided foam tape or another adhesive (not included). The low-profile design makes them discreet. Use them for cabinet doors, tool holders, DIY projects, crafts, organizing metal objects in the garage or workshop, or any situation where you need a reliable magnetic latch. They're economical and come in a pack of 8, so you have plenty for various jobs. Simple, effective, and surprisingly strong for their size.