Economy Support Stand; 8³⁄₁₆ in. dia. Base, 18 x ⁵⁄₁₆ in. Support RodSturdy and stable support stand has a rust-proof, polycarbonate plastic base with a 46cmH x 7.9mm dia. (18 x ⁵⁄₁₆") stainless steel support rod secured to the base with two hex nuts. Offset rod mounts to the 20.8cm (8³⁄₁₆") diamete..