Features: 1. Perfect Combination: The vertical jump touch counter will cultivate children's interest in high jumping, help exercise high jumping, and promote height growth. 2. Built-in Voice Broadcast and Light: Enhance children's physical training, intelligent encouragement, stimulate children's fun. 3. Simple Installation: Installing it at the highest point that children can reach will bring them a lot of satisfaction. It doesn't need to punch holes and doesn't hurt the wall. Specification: Name: Touch High Jump Counter Toy Age: Suitable for 3 years old and above Size about: 10*3.6cm/ 3.94*1.42in Power supply mode: AAA battery*2 (not included) Packaging size about: 11.5*11.5*6cm/ 4.53*4.53*2.36in Weight about: 109g Packing List: 1*Vertical Jump Tester 1*Height Growth Chart Notes: Due to the lighting effect and shooting angle, the product has a color difference, please understand. Due to manual measurement, there are tolerances in product dimensions.