I bought it for WLtoys V977 instead of dedicated metal upgrade. For servo arms have to screw this balls: http://www.banggood.com/Orlandoo-F150-OH35P01-KIT-Parts-Ball-Head-Screw-14Pcs-TA0011-p-987038.html?rmmds=myorder Servo linkage are with ball-links instead primitive hooks, additionally now can adjust the blade grip angle.

I bought it for WLtoys V977 instead of dedicated metal upgrade. For servo arms have to screw this balls: http://www.banggood.com/Orlandoo-F150-OH35P01-KIT-Parts-Ball-Head-Screw-14Pcs-TA0011-p-987038.html?rmmds=myorder Servo linkage are with ball-links instead primitive hooks, additionally now can adjust the blade grip angle.

I bought it for WLtoys V977 instead of dedicated metal upgrade. For servo arms have to screw this balls: http://www.banggood.com/Orlandoo-F150-OH35P01-KIT-Parts-Ball-Head-Screw-14Pcs-TA0011-p-987038.html?rmmds=myorder Servo linkage are with ball-links instead primitive hooks, additionally now can adjust the blade grip angle.

I can't recommend these spare parts to purchase because of bad quality of them. They look well, but when you try using them you will see that it's not strong and durable. I experienced 2 crashes because of something was wrong with new head (screw fell off and etc.).

I can't recommend these spare parts to purchase because of bad quality of them. They look well, but when you try using them you will see that it's not strong and durable. I experienced 2 crashes because of something was wrong with new head (screw fell off and etc.).

I can't recommend these spare parts to purchase because of bad quality of them. They look well, but when you try using them you will see that it's not strong and durable. I experienced 2 crashes because of something was wrong with new head (screw fell off and etc.).