1-piece aluminum surprise limit for XB8 & GTX Zero Rebound Shocks features somewhat vent opening that produces surprise assembly exceedingly predictable and simple, permitting extra shock oil to effectively escape. Machined interior ridges guarantee appropriate positioning and sealing linked to the super-soft silicone membrane layer layer. Ebony coated. CNC-machined from premium lightweight 7075 T6 aluminum. Band of 2.