Machined aluminum top shock limit for T4 SLP aluminum surprise absorbers. Ebony color. Set of 2. the top of aluminum limitation features a little vent starting making surprise construction acutely predictable and simple, since extra shock oil will escape through this vent area ensuring just the correct degree of the oil will be the surprise installation. Machined interior ridges confirm appropriate positioning and sealing related to super-soft silicone membrane layer layer layer layer.