Steel Protective Coil Spring, 2.12 Inch ID

It's designed to protect your hose cover from getting torn up by abrasion or accidental damage. Basically, it's a shield for your hose.

Built for hose protection, it wraps around the hose to shield the cover and reinforcement from abrasion and accidental damage in industrial environments.

This protective coil is made for hoses with a 2.12-inch outer diameter. You might need to unwind it a bit to get it started.

You'll likely need to unwind it slightly to open up the ID before fitting it over the hose. The coil is meant to sit snug once it's in place, but expanding it a bit first is pretty much part of the standard install process. Once you let it wind back down around the hose, it holds firm and does its job keeping the cover and reinforcement from taking abuse.