Amazon.com: OWI-536 All Terrain 3-in-1 RC Robot Kit - ATR : Toys & Games
OWI Inc Robotic Arm Edge Wireless Remote Control Interface | No Soldering Required | Extensive Range of Motion on All Pivot Points | Added Searchlight Feature | Lift 100 Grams
Modifications to Robot Arm for Opto Coupler Feedback, OWI 535, Edge Etc : 6 Steps - Instructables