Feature: 1. Professional: It is one of the best premium non responsive yo yos with powerful rotation, excellent stability and great performance on the strings. 2. Smooth Sandblasted Finish: The ultra smooth sandblasted finish never fades and is not easily scratched. Metal alloy yoyo has butterflies shape, improved weight distribution and excellent performance. 3. Easy to Handle: Equipped with concave bearings, which means you have to do a trick called binding to get it up. We recommend searching for how to return unresponsive yo yos on the software to learn more yo yo tricks. 4. Durable Aluminum Alloy: Made of premium aluminum alloy, stable and balanced high speed program, high precise aircraft grade material, aluminum alloy ball shell and stainless steel bearings, enhance the shock and fall resistance of the aluminum yoyo. 5. Exercise Coordination: Playing various tricks requires constant training. Training non automatic yo yos can exercise one's physical coordination, develop children's perseverance and patience, and improve communication skills. Specification: Item Type: Yoyo Size: Approx. 5.5 x 5.5 x 4cm / 2.2 x 2.2 x 1.6in Material: Aluminum alloy. Package List: 1 x Yoyo3 x String1 x Glove1 x Instruction Manual