Description: -The Dual ArmTail Pitch Lever is designed with double arms to provide additional support on both sides of the tail pitch slider. It is designed with an additional mounting hole to give users option to change pivot point for the bell carnk to achieve best performance. With double precision bearings built in the unit gives best precision tail controls and smoothness. Moreover, the Tail Pitch Lever uses a CNC Metal Ball to achive best precision as well as durability. It is designed to improve tail controls performance on E-FLITE BLADE 400 helicopters. Includes: -CNC Dual Arm Bell Crank -All hardwares Requires: -Loctite (#242 is recommended) -Assembly Weight: 2.4 grams with all hardwares. Usage: -E-Flite Blade 400 helicopters Instruction: -Included in the package Features: 100% Precision CNC machined Aluminum Pre-assembly 2 precision miniature flange bearings Special brass screws included Special reduced OD Steel Washer to prevent friction to outer ring of bearing Light weight designs, strong and stylish