The cool new Stainless Steel Whistling Yo-Yo by YoYo Factory does just as the name implies, it whistles as it spins. This unique yo-yo is made from stainless steel with holes drilled all around it to create different pitched whistles depending on the spin speed. Not only does it make noises, it's also a fun working yo-yo for wasting some quality time with or even delivering a full-blown professional yo-yoing performance.
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