Training appoint played through the cap

摘要

This relates to devise training appoint played through the cap , training appointed to control the pressure of playing through internal and that for the purpose of providing a cap . To this end , the present invention is to be mounted in the cap to appoint training barrel reproduction , reproduction control of the internal cylinder pressure that is the internal pressure control holes in the lower cap to be provided with a body portion, a cap detachably coupled to the upper portion of the cap body and converts to characterized in that it comprises a . ; damage to the cylinder in accordance with the reproduction control the water pressure being the pressure of the inner cylinder according to the training schedule appoint play reproduction barrel cap according to an embodiment of the subject innovation does not occur unless there is an effect .