WAJIB TAMBAHKAN BUBBLE WRAP UNTUK KEAMANAN BARANG ANDA. https://www.tokopedia.com//dbesttoys/tambah-bubble-wrapping-kualitas-bagus-tebal-aman NO RETUR NO GARANSI NO KLAIM With this Rocket Ball science kit, you can create your own supersonic bouncy balls! Unique and mind-boggling, this Rocket Ball kit explores energy and ballistics. Watch the bouncy ball bounce MUCH higher than you drop it! Kids will discover the science of superelastic collisions as well as inertial energy blasters. In addition, learn about the science of elasticity, polymers, energy and motion. Scientific knowledge plays an important role in everyday life. Hence learning about science knowledge is quite important. And this kit allows you to learn as well as have fun at the same time! Product Features: 11 accessories Includes 60g coloured polymer, 3 plastic tubes, 2 dowels, protective goggles, 4 various size moulds Approx product size: 5 x 9 x 5.5 cm