Guidecraft Treasure Tubes Clear: Observation Stacking Acrylic Tubes with Transparent Window, Kids' Sensory Exploration Toy

Treasure Tubes feature transparent windows perfect for observing or displaying small objects for Ages 3+ Holds marbles, beads, twigs, leaves, small toys and more; accessories and natural materials sold separately Use for color and sound exploration and light table activities Flat, easy-to-remove top keeps objects secure and creates options for stacking Largest Tube measures: 3"Dia. x 5.75"H. Smallest Tube measures: 3"Dia. x 3.5"H