Cylindrical Knob Lock *Material: Brass or Stainless steel *Backset: adjustable 60mm or 70mm *Door thickness: adjustable 35mm-50mm *Cylinder: 5-pin cylinder, Kwikset and Yale keyway available *Different finish available: PB, SB, AB, AC, SS, SP, CS, SC, CR, AD, 10B, PVD *Different functions available: bedroom, bathroom, passage, store room, hotel room, patio, single dummy trim.