These adjustable hose donuts are available in sizes to fit most hoses with 1" thru 6" ID. Each size will fit multiple OD dimensions. The flex design allows youto open them, fit them in place and close to secure tightly on your hose. Made from white food grade high impact, crack resistant poly material with stainless steel hardware. Available in 1" wide style to fit 1" thru 4" ID hoses and 1-1/2" wide sizes to fit 1-1/2" thru 6" ID hoses.