Velocity Boxing Stress Reliever Desktop Speed Punching Ball w/ Heavy Duty Suction Cup and Spring, Pump, Needle Velocity Boxing Stress Reliever Desktop Speed Punching Ball Features a Heavy Duty Suction Cup and Metal Spring, Sticks to Any Smooth Flat Surface, Stays Securely Attached Hit After Hit! Also Includes a Hand Pump Along with Inflator Needle Great for Anyone, Perfect for Home or Office Stress Relief! Overall Height: 14", Base Diameter: 7"