???Specifications:
100% Original Walkera brand.
100% Brand New.
Suit for: Walkera 4F200LM Helicopter
High quality and durable in use.
Easy to install.
Package size: 10 * 10 * 1 cm / 4 * 4 * 0.4 in
Package weight: 16 g / 0.6 oz

Package list:
1 * Original Walkera 4F200LM Helicopter Part Main Shaft Set HM-4F200LM-Z-18