Air springs for the air suspension of trucks, buses, trailers and passenger vehicles. An air spring carries the vehicle's load on a cushion of compressed air and smooths the ride over rough roads. The range covers rolling-lobe air springs with black rubber bellows. Versions include a round bellows on a black base piston, a bellows on a bright metal base, and bellows with a metal top plate carrying threaded mounting studs and an air inlet fitting.