This is a pair of 23x40mm Shock Springs from Axial.

 

 

FEATURES

Fits 16mm piston shocks
Steel construction, black in color with dab of red paint to
indicate compression rate

 

 

INCLUDES

Two 23x40mm Shock Springs

 

 

SPECIFICATIONS

Diameter: 0.90" (23mm)
Length: 1.6" (40mm)
Compression Rate: 3.2 lbs-in (red)