The price is for one piece. Material: zinc alloy Color: Antique Gold Brass Measurements:  S Dia: 0.98" (25 mm) Protrusion after installation: 0.8" (20mm) M Dia: 1.18" (30 mm) Protrusion after installation: 0.8" (20mm) L Dia: 1.33" (34 mm) Protrusion after installation: 0.8" (20mm) About Screws:  1.0’’ (25 mm) as default. Screws are available in 0.79’’(20 mm), 1’’( 25 mm), 1.18’’( 30 mm), 1.38’’( 35 mm), 1.57’’( 40 mm), 1.77’’( 45 mm), 1.97’’( 50 mm). If you have special requirements on screws, please feel free to let me know.  Please visit my shop for more knobs and handles https://www.etsy.com/shop/Dreamchinese