... : 3CC , 5CC , 10CC , 30CC , 50CC ,55CCColor : Clear BarrelLight Amber Barrel(280-350nm)Dark Amber Barrel(99.9% UV-Block)Opaque Black BarrelAdvantages ... .Optimum syringe barrels are available in general-purpose clear, light-blocking amber and light-proof blackconfigurations in 3, 5, 10, 30 and 55cc ...