Thon Extension Ring for Showbar Tri LED 18x3 Case, suitable extension for Stairville Showbar Tri LED 18x3W Case, 7mm Plywood, 30 x 30mm Aluminium Profile, foam padding, 4 Butterfly-Catches, 4 Handles, made in germany, external dimension 1145 x 575 x 195mm, weight ca. 12,7kg