This product is made of high-quality stainless steel, hard and wear-resistant, and will not deform after long-term use. This finger tiger can be rotated and folded for storage, making it compact and exquisite, making it easy to carry around. Made of stainless steel material, it can be opened and worn on your fingers, and when forcefully knocked out, it can shatter bricks and stones. The four rings can be arranged in any combination, can be shrunk into a single ring, or can be placed side by side to form a double finger clasp, or can be fully unfolded for use as four fingers.