Trademark Innovations Desktop Punching Speed Bag Stress Buster with Pump Suction cup base adheres strongly to any smooth, flat, dry surface Measures 10.2"L x 5.3"W x 4.1"H and weighs 4lbs Comes with a pump to easily maintain inflation. NOTE: PIN FOR PUMP LOCATED INSIDE PUMP HANDLE A great de-stressor either at home or the office By Allures & Illusions