This versatile set encourages many hours of engaging, open-ended sensory exploration and loose parts play. The durable cups and tray work well with a variety of materials including, water, sand, water beads, and more. For over 55 years, hand2mind has encouraged hands-on learning and discovery, driving deeper understanding and helping children unlock their full potential. hand2mind is a pioneer in social emotional learning products that help kids manage their emotions and build mindfulness for kids. From kindergarten to middle school, hand2mind has you covered with products designed to enhance learning in the classroom and the world around us. Through innovation and discovery, we strive to find new ways to encourage students in math practice, literacy activities, STEM education, Social Emotional Learning, and more!