Please attach the yoyo string according to the instructions, DO NOT TAKE THE YOYO APART! Features:1. It is not only for daily entertainment, but also for acrobatic performance with most entertaining fancy 2. Designed to train fine motor skills and eye-hand coordination 3. It can cultivate the imagination, creativity and rapid reactionability 4. A toy for kids, friends, families, etc 5. Magicyoyo improved plastic responsive yoyo. Parameters: Series K1 Style String Trick (1A, 3A, 5A) For Age Age 8 up Made In China New Version Release Year: 2016 Condition: New Weight: 65g Diameter: 51.03mm Width: 41.01mm Gap Width: 4.38mm String Length: 43.31 in/ 110 cm Body Material: PVC Package Bearing:regalur flat bearing Different from K1 Unresponsive Version. This responsive K1-Plus Magicyoyo very good for beginners.