Ohaus's Elementary Balance is an affordable way to introduce mass measurement to elementary and grade-school students. This durable plastic balance is accurate, washable and easy to use. Deep polystyrene pans let kids weigh everyday objects, and the included classroom activity guide helps them along the way. Dual pointers allow results to be viewed from both sides of the balances, making them perfect for group exercises. Choose an elementary primer balance for kindergarten to third-grade students or an elementary school balance for children up to grade six.