If you've got a camper, boat, or trailer, you probably need the bROK Vinyl-Coated Clip 3-Pack. These vinyl-covered, replacement cotter pins do a great job of holding your trailer's towing pin securely in place while you're rolling down the road. The vinyl-dipped pull ends make them easier to grip and use. These replacement cotter keys from bROK are made of chrome-plated solid steel wire for years of corrosion resistance and reliable performance. 3-pack. Clips hold trailer's towing pin in place while traveling Vinyl-dipped pull ends make them easy to grip Solid, strong steel wire construction Chrome plating resists corrosion