Description: Child/Adolescent height boosting artifact, help exercise high jump and promote height growth. Multi mode electronic watch to help children set goals and stimulate the desire to challenge. Upgraded spring count, sensitive transmission, and more accurate counting. for Nano glue, paste more firmly, does not hurt the wall, can be used repeatedly; Suitable for a variety of walls, suitable for smooth surfaces such as wooden doors, glass doors, putty walls, tile walls, etc. Lightweight aluminum steel material, light and durable, firm and not falling off. Specifications: Material: Lightweight Aluminum Steel Battery: AA Battery Weight: About 330g Service Life: More Than 10 Years Counting Range: 0-99999 Size: Line Length(Approx.): 75cm/29.53 inch Backboard: 12x10cm/4.72x3.94 inch Timer Width: 8.5x8cm/3.35x3.15 inch Note: 1. This is not infant toy,please take away from kids to avoid eating. 2. Please allow slightly error due to manual measurement. 3. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 4. Wish you a wonderful on-line shopping! Package included: Optional: No Height Stickers: 1x Backboard 1x Timer With Height Stickers: 1x Backboard 1x Timer 1x Height Stickers 1x Tape