Hourglass for Kids Details: The 3D puzzle maze hourglass timer 2 series, unicorn 3D patterns and 3D stars patterns on the top of the hourglass sand timer, both are children's favorite, fun to children. Brain Teaser Toys: The puzzle plastic hourglass can train attention and hand-eye coordination. Non-breakable, No odor, smooth corners, adults, and children can play. Durable, lightweight, and easy to carry Customized timing and colors: 1 minute, 3 minutes, 5 minutes, 10 minutes,15 minutes, 30 minutes, And each one has a number of time mark. Easy to tell different usage.