An inflation needle, its mold and method of manufacturing same are provided. The inflation needle (10) includes a hollow cylindrical probe (12); a hollow conic base (14) disposed at one end of the hollow cylindrical probe (12); a hollow externally threaded member (16) projected out of the hollow conic base (14), the hollow externally threaded member (16) being distal the hollow cylindrical probe (12) and communicating therewith; and a plurality of handles (18) disposed on an outer surface of the hollow conic base (14).

An inflation needle, its mold and method of manufacturing same are provided. The inflation needle (10) includes a hollow cylindrical probe (12); a hollow conic base (14) disposed at one end of the hollow cylindrical probe (12); a hollow externally threaded member (16) projected out of the hollow conic base (14), the hollow externally threaded member (16) being distal the hollow cylindrical probe (12) and communicating therewith; and a plurality of handles (18) disposed on an outer surface of the hollow conic base (14).

A boxing, kickboxing or martial arts bag such as a slip ball or double end bag including a swivel bearing adjustable strap.

A detachable ball inflation and deflation device is disposed in a cavity of a ball. The device includes an air inflation unit, a non-return unit, and a reinforcement sleeve. By applying a force to press the air inflation unit repeatedly, the air outside the ball passes the non-return unit to enter the inside of the ball so as to inflate the ball, and the air filled into the ball won't deflate. The device has the function to deflate the ball in a quick way. When the air inflation unit is pulled out of a portion of the ball, the air inside the ball can be deflated quickly, so that the ball can be carried and stored conveniently.

A detachable ball inflation and deflation device is disposed in a cavity of a ball. The device includes an air inflation unit, a non-return unit, and a reinforcement sleeve. By applying a force to press the air inflation unit repeatedly, the air outside the ball passes the non-return unit to enter the inside of the ball so as to inflate the ball, and the air filled into the ball won't deflate. The device has the function to deflate the ball in a quick way. When the air inflation unit is pulled out of a portion of the ball, the air inside the ball can be deflated quickly, so that the ball can be carried and stored conveniently.

A repeatable use valve in a tennis ball that uses a common sports ball inflation needle inserted into and through the valve to increase or decrease the pressure inside the ball. The increase or decrease in pressure will cause the ball to have respectively higher or lower bounce. The valve can be installed in new tennis balls at the time of manufacture. The valve can also be installed in used tennis balls, including used tennis balls that have lost some or all of their original factory pressure.

An electronic air pump pressurizes object in either manual or automatic mode. In automatic mode, the electronic air pump determines air pressure needed to adjust an object to a set target pressure. The electronic air pump inflates or deflates the ball automatically until the air pressure inside the ball matches the preset value. In manual mode regulation of the air pressure is adjusted by a user.

An electronic air pump pressurizes object in either manual or automatic mode. In automatic mode, the electronic air pump determines air pressure needed to adjust an object to a set target pressure. The electronic air pump inflates or deflates the ball automatically until the air pressure inside the ball matches the preset value. In manual mode regulation of the air pressure is adjusted by a user.

An electronic air pump pressurizes object in either manual or automatic mode. In automatic mode, the electronic air pump determines air pressure needed to adjust an object to a set target pressure. The electronic air pump inflates or deflates the ball automatically until the air pressure inside the ball matches the preset value. In manual mode regulation of the air pressure is adjusted by a user.

An electronic air pump pressurizes object in either manual or automatic mode. In automatic mode, the electronic air pump determines air pressure needed to adjust an object to a set target pressure. The electronic air pump inflates or deflates the ball automatically until the air pressure inside the ball matches the preset value. In manual mode regulation of the air pressure is adjusted by a user.