Ready, build and explore! Enjoy this interactive two-handed mechanical model with rotating and clicking moving parts. The ROKR rotating multi-tube 3D wooden puzzle features six rotating tubes, each able to release six rubber bands. The detachable rotating assembly holds up to 36 rubber bands in total. Inspired by classic rotary mechanical design, this lightweight model reveals fascinating rotary transmission principles. It uses rubber bands as soft projectiles and will not harm living things. Grab your set and start your mechanical exploration today! *Notes: Wax and AAA*3 batteries may not be included due to customs policy. Candles, crayons or beeswax can be used instead of wax. | Rokr | | 3D Wooden Puzzles for Adults,Rotating-Barrel Machine,412 Piece 3D Puzzles,Gift for Adults and Teens LQA01 | Brown | Best Buy