Adjustable height, up to 65" Foam injected ball Highly responsive spring Commercial grade steel Stable suction cup base Portable design Can use weights instead of suction cups The Lotus Cobra Bag is the perfect training companion for boxers and martial artists looking to enhance their precision, speed, and agility. Featuring an adjustable height of up to 65", a durable foam-injected ball, and a highly responsive spring, this bag is designed to handle intense speed and defensive drills with ease.