Essentials Secure Strap Bring the Lock Down to your cover with the Big One, The ultimate wind strap! The Secure Strap XL will help secure your cover down when the bad weather comes. It will also provide a safety feature by making it harder for children trying to lift the cover up. This is ONE big strap. It is made of 2" polypropylene webbing and 12' long (adjustable). It has one big connecting buckle and two powder-coated metal brackets that attach to the spa. The product contains one 12' Long adjustable strap and 4 screws to attach it to your hot tub.