The Gripper Arm is ONLY available as part of the ER1 bundle.

"Get me a beer." The coolest robotic tricks begin with the addition of the ER1 Gripper, our first "arm-like" accessory for ER1 Inventors to begin grabbing and carrying objects. The Gripper design provides easy operation, a fun gripping action and high-tech styling in a single, optional accessory. Who knows? Maybe you'll make the first ER1 Crusher!

• Smooth, opening and closing gripper action
• Strong and reliable spring system operation
• A great starting point for your next ER1 project