Lockwood Velocity Series Large Round Rose Door Handles 63mm round rose, 6 lever styles. Simple twist and tighten fixing method. Super Fast Installation Through the simple twist and tighten fixing action the Velocity Series turns the rhetoric of ease of installation into reality. The frustration of fiddling with small parts or misplacing them during installation is a thing of the past as Velocity lever sets are supplied pre-assembled so there are no loose screws or spindles. Screws align through the rose removing the need to locate them blind through the door. A twist and a quick tighten of screws and the levers are installed. Lever L1 - Summit63mm Round Rose. Lever L2 - Spire63mm Round Rose. Lever L3 - Element63mm Round Rose. Lever L4 - Glide63mm Round Rose. Lever 28 - Hakea63mm Round Rose. Lever 34 - Saltbush63mm Round Rose.