[Responsive Yoyo for Beginners] K2 PLUS is one of the top recommended 2 functional entry-level yo-yos.<br> It is an kids yoyo, good for beginner to practise basic string tricks 1A 3A 5A, just a gentle tug on , it will return your hand .<br> [Dual Yoyo - Also Pro Unresponsive Yoyo]Yo-yo K2 is responsive yoyo (slim ), package attached unresponsive .<br> When you move to level, just to change the with (attached), you will a new Unresponsive Yoyo, no need to buy another yoyo, a good value .<br> []Made of high quality PC, beautiful crystal color, wear-resisting, pollution-free, safe to use.<br> Durable and sturdy.<br> Perfect gift , , beginners, family, as Christmas Birthday gift.<br> [IMPORTANT]1.For responsive yoyo mode, if the yo yo do not come back sensitively, it is advised to add few lubricating oil or rust-proof oil into the (add the oil inside and outside of the ).<br> 2.After changed to Unresponsive yoyo, it will not come back to your hand when you pull it up.<br> You will need to learn a trick called a to bring the yoyo back.<br> Body Shape: Butterfly Diameter: 55.33 mm Width: 42.67mm space Width: 4 mm : Narrow C Axle: *8mm Surface: Shining Finish Style: String Trick (1A, 3A, 5A) Response Pad: Silicon Pad (random color,'t accept the specified color.)<br> Twist-Apart String Length: 43.31in/110cm Material:PC colour:blue Package Contents: 1 x puller 5 x ball string (random color,'t accept the specified color.) 1 x storage bag 1 x10mm screw 1 x 8 ball Only the above package content, other products are not included.<br> Note: Light and different displays may cause the color of the item in the a little different from the real thing.<br> The measurement allowed error is +/- 1-3cm.