Wooden Electric Simulation Crawler Tank DIY Toy Assembly Model,Spec: No. 2 Dual Motor Remote Control Edition 1. Train childrens practical ability, hand-eye coordination ability, exercise thinking, develop intelligence, and explore science. 2. Special fit design, no glue needed. Simply remove the parts from the plywood for smart and fun assembly. 3. Material: wood 4. Suitable age: over 5 years old 5. Note: The product delivery does not contain batteries, glue, paint, etc. Function difference: Basic version: no remote control, turn on the switch and run forward Remote control version No. 1: remote control tank forward and backward Remote control version No. 2: Remote control tanks can move forward, backward and turn Remote control version No. 3: Remote control tanks can move forward, backward and turn Automatic black line version No. 4: can patrol the black line, can only drive along the black line No. 1 single motor basic version: -Overall height: about 90mm -Overall width: about 120mm -Overall length: about 190mm -Product weight: about 198g No. 1 single motor remote control version: -Overall height: about 90mm -Overall width: about 120mm -Remote control size: 95*40mm -Overall length: about 190mm - Product weight: about 216g No. 2 Dual Motor Remote Control Version : -Overall height: about 95mm -Overall width: about 140mm -Remote control size: 75*75mm -Overall length: about 190mm - Product weight: about 358g No. 3 double motor remote control version : -Overall height: about 95mm -Overall width: about 130mm -Remote control size: 110*85mm -Overall length: about 190mm - Product weight: about 375g No. 4 automatic black line version: -Overall height: about 90mm -Overall width: about 140mm -Overall length: about 190mm - Product weight: about 261g