Upgradelights Pair of Slip Uno Adapter Harp Converter Lamp Shade Uno Euro Fitter 1 9/16 I.d. Upgradelights Pair of Slip Uno adapter Fits directly over a lamp socket (often found at many popular retail stores). Attaches to harp Fits directly over a lamp socket (often found at many popular retail stores). Attaches to harp American family owned small business, USA based customer service. Always next day free shipping from NC.