recently convert my rv 's power supply cord to one that plug into both the power source and plug into the rv . do not like try to stuff the cord into the ` rat-hole ' power cord storage box the manf use . I now have a 30 foot cord that be store where ever when not in use . I buy two of these bag for cord storage . they be a perfect fit for ` Parkpower 30RPCRV 30 amp rv right angle lock cordset ' from Amazon and other .