Built Tough. Tobin Apparatus is a Missouri-based manufacturer offering our 7-inch magnetic traffic cones. Standard plastic cones blow away in high winds and crack under pressure—ours are built from indestructible, ultra-soft PVC and anchored by industrial-strength magnets. Perfect for extreme weather, vehicle training, 360 walk around, and heavy commercial use, they are designed to be driven over and relied upon day after day. Explore our range of 9 vibrant colors, including specialty glow-in-the-dark options, and find the perfect fit for your job site.