The OneN Door Lever by d line is a stainless steel door lever that combines rounded and flat forms in an elegant, uncomplicated design. Introduced in 2003, designed by Danish architectural firm ONEN. Certified to EN1906 and EN1634-1. Made in Europe. Specifications Rose: Ø 50 mm (1.97", approx. 2") Door thickness: 33 mm (1.3") – 59 mm (2.3") Bore hole: Ø 25 mm Certifications: EN1906, EN1634-1 Not suitable for pre-bored doors. This d line model mounts on a Ø 50 mm (1.97", approx. 2") rose, smaller than the standard North American door prep. It suits solid or unbored doors only. Verify all dimensions before ordering. Additional Components Knud Thumb Turn Areas of application: Commercial, Residential. Materials Stainless steel (AISI 304). Standard finish: Satin Stainless Steel (Grain 320). Additional Finishes (Available Upon Request) PVD Satin Brass PVD Satin Bronze PVD Satin Black Polished versions X-BAC antimicrobial coating Product Downloads OneN Door Lever Spec Sheet OneN Door Lever Base Rose Drawing 2D OneN Door Lever Lever Handle Drawing 2D OneN Door Lever Installation Instructions Base Rose Spec Sheet (PDF) d line Passage Latch Options (PDF) d line Privacy Lock Options (PDF)