Stainless Steel Flush Mount Rod Holders - Closed End. 2" Diameter. 9" Length. Attwood stainless steel rod holders meet the need for the finest in finish, function and durability.. Polished 316 grade stainless steel tube for corrosion-resistance. Gasket Provides water seal around flange. Optional, U.V. resistant, Cover Cap/Gasket closes tube when not in use. U.V. resistant polymer liner protects finish on rod or reel. WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.