The Slope Indicator Casing is of a traditional glue and rivet style. It features precision grooves and strong, flush joints that provide superior resistance to twisting and bending. Casing sections and couplings are glued together, riveted, and sealed with mastic and tape. This standard casing is 70 mm in diameter x 1.5 m in length, however it is also available in 3 m lengths. Couplings, end caps, rivets, glue, tape, upstands and padlocks are sold separately as required.