These axles are titanium. This makes your wheelchair lighter and allows for increased strength and durability. The big button style release makes it easy to operate, and it also functions as a "hub cap" to reduce water and debris from entering the wheel hub.
Specifications:
Length: 4" (3 7/8" to 4"), and 4.5" (4-1/4" to 4-5/8")Material: Titanium
Weight Per Axle: 75g ea