These 2" E-Track O rings are exceptionally portable and can be easily mounted and detached from the E-Track slot with just a click of a lever. They can serve as reliable anchor points for all your cargo tie down needs. E-Track O rings are versatile and dependable. The E fittings on the rings can be inserted straight into a slot on the E-Track rail or portable single mounted on the floor or wall of your cargo vehicle, allowing the use of all tie-downs that lack E fittings. Ratchet and cam buckle straps, tarp straps, S hooks, and all other tie-downs can be hooked or easily tied around the durable steel O rings and then anchored to the E-Track rail in your trailer, truck, or cargo van, making them safe and easy-to-use freight tie downs. These E-Track O ring clip weigh just one pound each. The O ring and E fitting are made of steel and finished in a golden color. Each E-Track tie-down O ring gives you an assembly break strength of 4,500 lb. and a working load limit of 1,500 lb.This O ring 10-pack is also available in a silver heavy duty option.