This Ozark Trail Boat Accessories Sports and Marine Safety Air Horn is a must-have for any boat owner. With a capacity of 8 oz., it is perfect for use as a boat horn to alert others on the water. This boat horn is designed for use in all types of boats and is easy to install. In addition to its functionality as a boat horn, this product is also great for use as a safety gear and device. It is ideal for those who enjoy water sports and marine activities. This product is a great addition to any boat or watercraft and is sure to provide peace of mind while on the water.