Image Item No. Description By  33718  Electric Hub, USB - WeDo Robotics Catalog: Parts: Electric 1  4755  Electric Plate 1 x 2 with Contacts Catalog: Parts: Electric 6  4757  Electric Plate 2 x 4 with Contacts Catalog: Parts: Electric 1  4758  Electric Plate 2 x 8 with Contacts Catalog: Parts: Electric 1  99380  Electric Sensor, Gyro - EV3 Catalog: Parts: Electric 3