Duncan ProZ with Mod Spacers Yo-Yo, 2-Pack, Black/Green: * Includes patent-pending shape-changing spacers that allow you to modify its shape * Great for both looping and string tricks * Durable polycarbonate body * Ball-bearing axle * Starburst response for quick returns * Designed for beginner to advanced players * Includes 1 black ProZ yo-yo and 1 green ProZ yo-yo * Dimensions: 2"L x 2"W x 2"H