ready to ditch that worn down water board and get yourself an upgrade? our kneeling board weighs a little under 9 lbs. , which means it doesn't bog you down. each serene life kneeboard is finished with an adjustable strap, making it the ideal water board for boat activities, lake surfing or river cruising boards: measuring in at 50" long and 20" wide, our knee surfing board is just the right size to accommodate most older children, teens and adults. it`s the perfect boating knee board to share get ready to catch a wave our knee boards will have you showing off all of your awesome knee surfing skills when at the lake, at the beach or out on a rushing river.syi