What makes a fun noise when you shake it? Find trinkets, natural materials and sensory objects to collect in the beautiful, stackable Treasure Tubes. The round, transparent acrylic tubes with removable covers hold small objects to observe, display or rattle. Ideal for color and sound exploration and light table activities. Holds marbles, beads, twigs, leaves, small toys and more. Stack the tubes on top of each other to customize play experience. Details:Includes 8 tubesFeature transparent windows perfect for observing or displaying small objectsStackableUse for color and sound exploration and light table activitiesFor ages 3 and upMeasurements:Large tubes: 3'' x 5.75'' eachSmall tubes: 3'' x 3.5'' each