Blue Jay Sacroiliac Belt Black XX Large 52 58 Leg Positioners Premium EVA foam rollers are Oxygen Masks Premium EVA foam rollers are perfect for positioning balance postural and muscle re education spinal stabilization body awareness and coordination and ranging and strengthening activities * Round rollers offer progressive exercise sequences user can graduate from an easier (smaller diameter) to a more difficult (larger diameter) roller * Half round roller is a great tool for ankle stretching and knee rehabilitation * Diameter refers to the width of the half round profile * The EVA rollers are strong enough to be used by large adults and active children * Foam rollers are available in 36 and 12 lengths with either a round (circular) or half round (semi circular) profile * This line of rollers is available in marbled blue * The EVA foam rollers are known for their firmness and soft touch * EVA foam is durable and a premium product * * Tool free assembly includes plastic snap on seat with lid Provides compression stability and support for the sacroiliac joint * Slimline design with adjustable tabs for a conforming fit * Color Black * To size measure around the hips