Radio Box Water Seal Boots for 2-56 sized linkage rods Features: Seals are constructed of rubber, purple in color. Includes: Three Radio Box Water Seal Boots **2-56 linkage rod in picture not included** Requires: Drilling holes in radio box and gluing seals into place with CA glue Specs: Seals; Exits; Length: .708" (18mm); .551" (14mm)Diameter: .748" (19mm); .078" (2mm)