Arke Kompact Additional Riser 29" White

Ark kompact additional riser 29" white accessory for kompact modular "l" and "u" staircase models k35002, k35017- up to three additional risers can be added to reach a maximum height of 146-7/8-in. features:interior installationadditional riser kit consists of one beech wood tread, steel module,two balusters, gray connectors and hardwarerise adjustable from 6-3/4-in to 9-1/4-in.use only with models k35002 and k35017