Includes 2 M8 Burnt blue Titanium Adjuster bolts Aluminum axle block are keyed to keep the axle from rotating while loosening or tightening the axle nut Captive block design, the adjuster bolts keep the axle blocks in place and never fall out Adjuster bolts are designed with a 3mm Allen key for quick and easy initial installation, After first install you will use the 10mm wrench for Titanium adjuster bolts wont rust or corrode Includes copper anti-seize lube for years of smooth trouble free adjustments.