Listing descriptionHigh quality Reasonable price Delivery fast Fasion packing Detailed descriptionTubular knob lock 1, structure: 304 stainless steel or solid brass construction. 2, function: 1-entrance, 2-privacy, 3-passage, 4-storeroom, 5-classroom, 0-dummy are available. 3, knob style: 6 different knob styles available to meet customer´s need. 4, finish: ss, pss, pb, sb, ac, ab, cp, pvd, us15a, or required. 5, latch bolt: 60mm (2-3 / 8") ~70mm (2-3 / 4") adjustable latch as standard; drive-in or 6 way latch also available as request; 6, rosette: small rose (65mm) as standard, m (70mm) & l (75mm) also available. 7, keyway: kw1 (kwikset) , sc1 (schlage) , wr5 (weiser) , yale, c4 or special required. 8, keying: ka(keyed alike), kd (keyed diffrent), msk (master key), csk(construction keying); 9, door thickness: fit doors 35mm (1-3 / 8") to 50mm (2") thick, easy to install. 10, pack: wbx (white plain box) ; cbx (colorful box) ; or vp (clam shell) .