Enjoy intense blowjob-like simulation with the incredible Suck N Stroke Head Pump. This easy-to-use tip teaser creates a powerful suction action that stimulates the sensitive nerve endings underneath and around your penis head. With each squeeze of the medical-style pump ball, the soft rubber sleeve clings to your manhood and slides up and down with each pump. Choose a ring size first, slide the ring over the sleeve, fold the sleeve over the pump cylinder, and enjoy a vacuum-tight seal around your head. Be sure to use plenty of Moist® Body Lotion for an extra wet, extra wild encounter! Perfect for Beginners! Intense Blowjob-Like Suction Made to Play Hard Includes: Medical-Style PVC Ball Pump Super-Stretchy PVC Pump Sleeve Heavy-Duty ABS Cylinder Clear and Sturdy Vaccuum Tube (3) Graduating Silicone Cockrings FREE Love Mask, Lotions, and Toy Cleaner Ball Pump Dimensions: Width/Depth: 2.09" (53.29 mm) Height: 3.13" (79.66 mm) Sleeve Dimensions: Length: 4.9" (124.65 mm) Width: 2.3" (58.53 mm) Depth: .1" (2.77 mm) Cylinder Dimensions: Length: 3.22" (81.79 mm) Width/Diameter: 2.07" (52.7 mm) Depth: .08" (2.09 mm) Tube Dimensions: Length: 17.5" (44.4 cm) Width/Diameter: .23" (5.87 mm) Depth: .06" (1.64 mm) Cockring Diameters: Small: 1.2" (30 mm) Medium: 1.6" (40 mm) Large: 2" (50 mm)