"The Robot Gripper from Makeblock is an add-on for your mBot or mBot Ranger for getting a grip on bigger objects than the mini-gripper can. The gripper is made from lightweight PVC and powered by an N20 screw motor which is protected by a thermal overload fuse.
Supplied as a fully assembled unit.
The Me Dual DC Motor Driver adaptor is required to connect the gripper to the main board of the mBots."
http://www.makeblock.com/
http://www.ecoiffier.fr/
http://www.ravensburger.de
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