The Hourglass has 1000's of tiny stainless steel balls that drop from the top to the bottom. The easy-turn, rotating hourglass will move 180 degrees so you can set and reset the timer. The hourglass has lots of uses apart from its sensory and fun aspects, including the timing of short activities such as small fitness routines or activities around the playground that you can specify a time for.�
Please note panels do not have pre-drilled holes
