Description: A new type of composite material, giving smoother action and prevents play for developing over a longer period of time! All plastics on the Execute XQ10 have been upgraded to this material! Keeping the flat shape design which allows you to run a taller camberlink position under the wheel without rubbing the wheel. Feature: For: Xpress Xpresso K1 M1, Execute XQ1 XQ10 XQ10F XM1 FT1 XQ1S XQ2S XM1S FT1S FM1S DR1S, GripXero D1 Material: Grey Composite Color: Grey Include: Flat Type Ball Ends (4 pcs)