Model toy mechanism design, cool and handsome appearance super eye-catching. No battery is required, using the "Pascal's principle" you only need to add water to control finger movements, 12 delicate angle adjustments can grab large and small objects, and the intimate palm width adjustment can be suitable for large and small palms, regardless of adults or children, left-handed and right-handed. In 2021, it was selected as one of TIME Magazine's 100 Best Inventions of 2021
