Learning Resources Pan Balance. This durable plastic pan balance is great for exploring basic measurement concepts. Each 1 litre (1,000ml) pan can measure up to 2kg of weight using the included 5g and 10g plastic stacking weights. Sturdy pan balance has sliding compensators for zero adjustment. Set includes Learning Resources Pan Balance, five plastic 5g weights and five plastic 10g weights. Balance measures 61cm x 35.5cm. Suitable for ages 5+