Kit includes 2 nozzles designed to fit comfortably and work effectively. All are covered in quality silicone and have large holes round the tip for a thorough cleaning experience. Each has an aluminium thread which fits most shower hoses.Dimensions: CLASSIC: TOTAL HEIGHT X BASE WIDTH: 6.85 x 1.49 Inches (174 x 38 mm) SHAFT INSERTABLE LENGTH: 4.37 Inches (111 mm) SHAFT DIAMETER: 1.06 Inches (27mm) at widest point PROSTATE: TOTAL HEIGHT X BASE WIDTH: 6.22 x 1.18 Inches (158 x 30mm) SHAFT INSERTABLE LENGTH: 4.53 Inches (115mm) SHAFT DIAMETER: 1.18 Inches (30mm) at widest point