WirthCo #32500 Funnel, Round, Plastic, Black, 4.5 in. Inlet, .4375 in. Outlet, 18 in. Length, Each. WirthCo makes adding fluid to your vehicles transmission or engine a snap. These 18 in. long black plastic funnels are designed to properly and neatly fill your vehicles transmission or engine. California Prop 65 - Warning, This product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.