Twin Thread Screwjacks

With a modern appearance and clever telescopic design, these twin thread screwjacks give you almost twice the opening distance for the same space.  Especially handy if you don't want your screwjack to encroach into your room.  Available in a range of finishes such as Bronze, Satin Nickel and Polished Chrome in both handle and pole styles, they are sure to suit most conservatories and skylights.