Great for tightening the tension on chains on a transported load, grade 70 ratchet chain binders from TireChainsOnline.com are offered in four different working load limits and sizes. Each binder is coated to prevent corrosion of parts and features a simple design that's easy to adjust. Ratchet chain binders are often preferred because less energy is stored in the handle when tension is applied. This reduces the chances of the bar recoiling or snapping, making it ideal for heavy loads that need to be tightly secured. Remember: never exceed the working load limit of your ratchet chain binder! Contact us if you have questions about working load limits, and remember that shipping is free on orders of $40 or more.