I purchased both items by mistake from Amazon. I wanted 1-ply and ordered the heavy duty 2-ply. My mistake your gain if you are interested. They have never been used. I have removed them from their original package. I spent about $85.00 with tax. I will let both of these slings go for $65.00. Lift-all is considered to be the best and largest company Made in America company for this type of product. I have attached the spec sheet as well. You can also look up any other info on Lift-All web site. https://lift-all.com.