Sold separately, Covered Bucket Balance with Number Bear Weights and Square Bucket Balance have interchangeable calibrated buckets that are easy to read, clean and fill. The transparent buckets also allow the child to see what's inside. These balances are the perfect tools to teach the concepts of numbers, weight and balance. Children can learn basic math, logical thinking, observational skills and decision making. * Covered Bucket Balance with Number Bear Weights holds up to 500m1 of liquid, and has an adjustment knob for precise measurements. Number Bear Weights physically represent the concept of numbers and add depth, variety and fun to play. * Square Bucket Balance has deep buckets that keep the contents safe and holds up to one liter of liquid.
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