Sizes include: 3/8-Inch F x 1/4-Inch M, 1/4-Inch F x 3/8-Inch M, 3/8-Inch F x 1/2-Inch M, and 1/2-Inch F x 3/8-Inch M. Aluminum storage rail. Chrome vanadium steel construction Product Features:Sizes include: 3/8-Inch F x 1/4-Inch M, 1/4-Inch F x 3/8-Inch M, 3/8-Inch F x 1/2-Inch M, and 1/2-Inch F x 3/8-Inch MAluminum storage railChrome vanadium steel construction
