Wltoys V966-003 Rubber Set for Wltoys RC Helicopter V966 V977 Part This is Wltoys RC Helicopter V977 V966 Spare Part V966-003 Rubber Set. It is durable, practical and not easy to damage. Additionally, the low price can save you a lot of money greatly. It is a great product to save your Quadcopter as well as money. Do not hesitate to bring it home!