This Edu-Toys My First Sand Timer Set is made of a tough plastic material and great for conducting time experiments.
It is suitable for children ages 3 and up. The set also includes 2 big caps, 2 main bodies, 2 test tube holders, a small filter, a small connector, 2 small caps, a big connector, a big filter, a net filter, 2 test tube converters, a shovel, a long test tube, a short test tube, a user manual and the activity book.