HCL-311 One Side Knob 60mm, HCL-313 One Side Knob 70mm, HCL-315 One Side Knob 80mm HCL-317 One Side Knob 90mm.Fiba produces a wide range of standard products with quality.high density imported lacquers. With a rare blend of beauty and utility, the product series flaunts a myriad.