The two large storage bins are ready to be filled with water, sand, beans, rice, or any other sensory material. There's plenty of room for 4 children to play together - indoors or outdoors - as they pour, scoop, and mix, naturally developing fine motor skills, imagination, and social interaction in a way that ordinary toys simply cannot match.Approx. weight:20LBS,fabric material:Cloths,Umbrella and base sold separately:No.Frame material:wood.