Yoyo King Double Agent Metal Professional Trick Yoyo and Extra Yoyo String (Green) Green Anodized 6061 Aircraft Quality Aluminum Construction. Weight: 66 grams - Width: 41 mm - Diameter: 55 mm Full sized metal yoyo is particularly fun to play with, featuring the best balance, long spin times, stability, and ease of catching on the string The Yoyo King Double Agent flared gap shape adds weight to the outside edges of the yoyo for long, fast spins. Full sized aluminum design makes it super fun to play with. Silicone response system. Ball bearing axle for super long spin times! Wide and narrow bearing both included. Includes a yoyo string. Narrow C sized bearing comes installed, for traditional responsive yoyo play where the yoyo wakes up. If you like nonresponsive or unresponsive yoyoing, use the also included wide, angled C bearing. Durable plastic construction.