Abstract: A fluid-filled punching bag assembly includes an inflatable bag and a sensor assembly cooperable with the inflatable bag. The sensor assembly includes an impact sensor that is configured to detect impact with the inflatable bag. A processor communicating with the sensor assembly is programmed to process sensor data from the impact sensor.

Abstract: A fluid-filled punching bag assembly includes an inflatable bag and a sensor assembly cooperable with the inflatable bag. The sensor assembly includes an impact sensor that is configured to detect impact with the inflatable bag. A processor communicating with the sensor assembly is programmed to process sensor data from the impact sensor.

Abstract: An inflatable bag is selectively usable as one of a buoy and a punching bag. The inflatable bag is inflated depending on the selected use, and the inflating is practiced differently depending on the use decision. When it is decided to use the bag as a punching bag, the bag is suspended, and the bag is inflated with water. An inflatable bag member and kit includes components suitable for the selected use.

Abstract: An inflatable bag is selectively usable as one of a buoy and a punching bag. The inflatable bag is inflated depending on the selected use, and the inflating is practiced differently depending on the use decision. When it is decided to use the bag as a punching bag, the bag is suspended, and the bag is inflated with water. An inflatable bag member and kit includes components suitable for the selected use.

Abstract: A self-supporting boat cover includes a cover member having a plurality of sleeves that extends substantially longitudinally from a bow end of the cover member to a stern end. A corresponding plurality of flexible poles are insertable in the sleeves through either end of the sleeves and are releasably securable in the sleeves. The self-supporting boat cover is easily installed and inexpensive to manufacture. Additionally, the flexible poles can be readily disassembled into a plurality of pole sections into a compact and easily transportable configuration.

Abstract: A self-supporting boat cover includes a cover member having a plurality of sleeves that extends substantially longitudinally from a bow end of the cover member to a stern end. A corresponding plurality of flexible poles are insertable in the sleeves through either end of the sleeves and are releasably securable in the sleeves. The self-supporting boat cover is easily installed and inexpensive to manufacture. Additionally, the flexible poles can be readily disassembled into a plurality of pole sections into a compact and easily transportable configuration.