The Adco SFS AquaShed Cover for Class A RV part # 290-52206 comes with four weighted straps as you mentioned. These straps are designed to help secure the bottom side of the cover to the motorhome. In order to install them you will first need to locate a lower strap on the cover and then attach one side of weighted strap to this. Once this is done you can then toss the other side of the weighted strap under the motorhome and secure it the strap on the other side of the cover.
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