5. CUESOUL TERO FLIGHT SYSTEM AK7 Dart Shafts Built-in Spring Telescopic, Set of 4 pcs (8 Length Choices & 9 Color Options)

Features:
Octagon shape on edge of shaft screw helps to tighten or loosen the shaft more easily than common ones.
Extra twin strengthening line moulded at the end of screw, holds the shaft more incredibly tight to the barrel.

Set include 4 pcs TERO shafts. 

Size: Measurements pictured below, 8 length options.

Weight: Total flight / shaft weight identified in the images below.

(TERO AK4 Standard flight, 0.8g/pc; TERO AK4 slim flight,0.7g/pc; TERO AK4 kite flight,0.9g/pc) 

High-quality and resealable packaging!

These shaft for use only with AK4 flights, as pictured below.