Description: DIY Self-assembled RC Car Model Robot Science Experiment Technology Intelligence. Following the instruction to assembly Remote control wind cars model step by step carefully. After finished the model , please install 2 Pieces AA R6 Batteries, the model car peopellers will rorate. Due to the air power,the RC Car will go forward. Perfect gift and hobby for friends, kids and adults. Specification: Meterial: Metal, plastic, board Unfinished Size: 145 x 110 x 30mm (5.71 x 4.33 x 1.18in.) Finished Size: 75 x 60 x 130mm (2.95 x 2.36 x 5.12in.) Color: Wood Package Includes: 1 Package DIY Model RC Car Model Puzzle Kits Note: The RC Car Model is a Non-finished Product, and Need You to Assemble it by Yourself. Please Allow 1-3mm Error Due to Manual Measurement. WARNING: CHOKING HAZARD -- Small parts. Not for children under 3 years old