Develop their senses and encourage science exploration with this set of 4 sturdy, clear tubes. SENSORY EXPLORATION: Encourage science discovery and sensory exploration with 4 sturdy, clear tubes featuring dual openings.; VENTED LIDS: Vented lids allow children to explore their sense of smell or safely observe small creatures within the tubes.; SECURE LIDS: Twist-on solid lids securely hold liquids inside for mess-free exploration and observation.; VISUAL LEARNING: Ideal for visual learners, this set promotes basic concepts and sensory integration through hands-on exploration.; WHAT YOU GET: Set includes 4 tubes, 8 solid lids (2 red, 2 blue, 2 yellow, 2 orange) and 4 vented lids (1 red, 1 blue, 1 yellow, 1 orange). Each tube measures 12L x 2 Dia.; test tube test tubes tubes with rack plastic tubes primary science tubes test tubes science tubes tube set science tubes set experiment tubes experiment toy for kids plastic tubes clear set of tubes jumbo sized tubes test tube test tubes tubes with rack plastic tubes primary science tubes test tubes science tubes tube set science tubes set experiment tubes experiment toy for kids plastic tubes clear set of tubes jumbo sized tubes