• There are 10 models with a reptilian appearance.
• The newly designed claw with rolling and climbing functions make the models more realistic.
• The 28X motor with switch has better torque and faster speed, and can move clockwise and counterclockwise. It is easy and quick to assemble.
• Requires 2 AA/LR06 batteries – not included.

Construct ten out-of-this-world machines and learn about the physics of levers and linkages.

A battery-powered motor box powers the models.

• Make a creepy slithering alien snake-bot model with rotating arms and articulating tail.
• Build an alien insectoid-bot that crawls on six legs.
• Create an alien raptor model with wings that move up and down.
• Assemble a cool grabber claw with a scissors mechanism.
• Make a bipedal alien robot model that walks on two legs. In addition, build models of a pumpjack, swinging device, hopping alien frog-bot, roving dino-bot with reciprocating arm, and rolling alien dragon-bot.