Cotter pins no more! With Brinly's extra-strength magnetic hitch pin, you'll never need to look for a cotter pin again, or struggle to get your tow-behind lawn and garden equipment hooked up to your tractor. Just use the easy-pull handle to quickly hook up your attachment, and get the job started! The Brinly magnetic hitch pin is guardanteed to last, featuring a high-grade neodymium magnet with weatherpoof plating. Brinly magnetic hitch pins come in two sizes made to best fit your category of attachment. Use the MHPK-58BH size for your sleeve hitch attachments, and the MHPK-12BH for all other Brinly Tow-Behind products.