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My toddler loves shaking these tubes to hear the different sounds they make, and the dual open ends make them easy to clean out when snacks get inside. The textured surface gives her a good grip while she's figuring out how to twist the caps on and off.

The dual openings make it so easy to swap materials and keep my little scientist engaged for a long time. I love that the tubes are sturdy enough to handle enthusiastic shaking without cracking.

My toddler absolutely loves that the tubes have dual openings, making it super easy to pour water and sand back and forth without any mess. We’ve been using them for backyard science play, and they hold up well to rough handling.