20 lbs of resistance, 48 inches in length, weighs 27 ounces, The Body Bar AquaFlex 4" supplies a maximum of 20 lbs of resistance when flexed, It is recommended for most users and is by far the most popular model of the Body Bar Flex bars, The AquaFLEX Bar is the same as the versatile Body Bar FLEX, but redesigned for use in water fitness classes, The bar is very lightweight, flexible, and buoyant; plus its variable resistance adds to the natural resistance of the body"s movement through the water for a very effective workout, Length: 4" SKU: BBS046