ThePinBaseArmStopcomesasapartofthesuctionbottlemountingarmkitinananesthesiadeliverysystem.Itisusedtostopthebasearm.ThebasearmisplacedonthebasecastingbyapplyingLoctite®lubricant.Thepinhasaheadandashaft.Theshaftispunchedintothebasecastingwithheadaboveit.Theheadispresentnexttothearmanditstopsanymovement.Itismadeofanacetalpolymer,acry stallineplasticmaterialwhichisverystrong.Ithasagoodwearresistance,thusmakingithighlyadvantageoustouseinvaryingenvironments.Itistoughandcanresistexternalimpactandthuspreventsdamagetothearm.Thechemicalresistantpropertyofthematerialmakesitdesirabletouseinmedicalenvironments.