This is a single (1) Kartech Anti Slip Axle Key.
AXK50PAS - For 50mm Kartech and European axles
AXK306PAS - For 30mm Kartech axles
AXK306AS - For axles with 6mm wide key slots
AXK308AS - For axles with 8mm wide key slots
Kartech Anti Slip Axle Keys spell the end to hubs moving on the axle during use. Simply adjust the top piece to fit against the inside edge of the hub to ensure it stays exactly where you want it. The unique toothed design and strong steel construction prevents any movement of the hub to maintain optimum performance.
 Available to suit most axles.

AXK306AS
AXK306PAS
AXK308AS
AXK50PAS------