[Responsive Yoyo for Beginners] K2 PLUS is a top-recommended, dual-function entry-level yoyo. It is ideal for beginners practicing basic string tricks (1A, 3A, 5A). With a gentle tug, it returns to your hand. [Dual-Mode Yoyo – Responsive & Unresponsive] The K2 comes pre-configured as a responsive yoyo (slim profile), and includes an unresponsive response system. When advancing to the next skill level, simply replace the included response pad to convert it into an unresponsive yoyo—no need to purchase another yoyo. [Made of High-Quality Materials] Constructed from durable, wear-resistant, non-toxic polycarbonate (PC) with a crystal-clear finish. Safe and sturdy for regular use. An excellent gift for beginners, families, or holiday occasions such as Christmas or birthdays. [Important Notes] 1. For responsive mode: If the yoyo does not return smoothly, apply a small amount of lubricating oil to the axle (both inside and outside). 2. In unresponsive mode, the yoyo will not return automatically when pulled. You’ll need to learn a “bind” trick to bring it back. Specifications: Body Shape: Butterfly Diameter: 55.33 mm Width: 42.67 mm Gap Width: 4 mm Axle Type: Narrow C Axle, 8 mm Surface Finish: Shiny Style: String Trick (1A, 3A, 5A) Response Pad: Silicone (random color; specific color requests cannot be accommodated) Twist-Apart String Length: 43.31 in / 110 cm Material: Polycarbonate (PC) Color: Blue Package Includes: 1 x yoyo 5 x ball-bearing strings (random colors; specific color requests cannot be accommodated) 1 x storage bag 1 x 10 mm screw 1 x 8-ball bearing Note: Colors may vary slightly due to screen settings and lighting conditions. Measurements are subject to a tolerance of ±1–3 cm.