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Tariffs have driven up the cost of this item significantly. We apologize for the price increase. We are absorbing some of the impact to help teachers but are forced to pass most of it along.
With moist hands, vigorously rub the bowl's handles. The frequency generated causes the water first to ripple around the rim of the bowl, then to shoot up as contiuous streams. Inspire student interest in waves, resonance, and dancing water for years to come with this durable, full-size 15"-diam bowl.If for any reason you are not satisfied with this item, it is eligible for a return, exchange, refund, or credit up to 180 days from date of purchase. Restrictions may apply. Returns & Exchanges Policy.