All major components of the ACS spherical air vent are machined from 6061 aluminum billet and anodized per MIL-A-8625. The ball is machined from delrin to avoid plating wear and to improve lubricity. The vent goes from fully closed to fully open with a 1/4 turn. The ball and nozzle subassembly can be easily removed from the front to allow access to the back of the mounting ring if you wish to use machine screws and nuts to mount the vent rather than sheet metal screws. The vent is available in black and gray. There is a spherical cockpit light (10670) that shares all external dimensions with the air vent and has a strong family resemblance.