[Responsive Yoyo for Beginners] K2 PLUS is one of the top recommended functional entry-level yo-yos. It is an excellent kids yoyo, ideal for beginners to practice basic string tricks 1A, 3A, and 5A. With just a gentle tug, it returns to your hand easily. [Dual Yoyo Also Pro Unresponsive Yoyo] Yo-yo K2 is a responsive yoyo with a slim bearing and includes an unresponsive KK bearing in the package. When you're ready to advance, simply replace the bearing with the included KK bearing to convert it into an unresponsive yoyo. No need to purchase another yoyogreat value. [Premium Quality] Made of high-quality PC material, featuring a beautiful crystal color, wear-resistant, pollution-free, and safe for kids. Durable and sturdy. Ideal for kids, friends, beginners, and family. A perfect Christmas or birthday gift. [IMPORTANT] 1. For responsive yoyo mode, if the yoyo does not return sensitively, it is advised to add a small amount of lubricating oil or rust-proof oil into the bearing (apply oil inside and outside the bearing). 2. After converting to unresponsive mode, the yoyo will not return to your hand when pulled. You will need to learn a trick called a bind to bring the yoyo back. Body Shape: Butterfly Diameter: 55.33 mm Width: 42.67 mm Gap Width: 4 mm Bearing: Narrow C Bearing Axle: 8 mm Surface: Shining Style: String Trick (1A, 3A, 5A) Response Pad: Silicon Pad (random color, specific color not guaranteed) Twist-Apart String Length: 43.31 in / 110 cm Material: PC Color: Orange Package Contents: 1 x bearing puller 5 x ball string (random color, specific color not guaranteed) 1 x storage bag 1 x 10 mm screw 1 x 8 mm ball bearing Only the above package content is included; other products are not included. Note: Light and different display settings may cause the color of the item in the picture to vary slightly from the actual product. Measurement allows an error of +/- 1-3 cm.