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Usually, a user hammers in a nail with both hands. One hand holds a nail and another hand grabs a hammer and hits a nail. In this case, it is easy to hurt a hand and needs so much strength. It is very dangerous and hard especially for a woman.
An arrow-hammer is designed to resolve these problems. A user is able to fix the hammer on the wall easily because the nail can be fixed in the hammer with a silicon cap. Also, it is very simple to use. A user charges the nail in the hammer with the silicon cap and then pulls and releases a handle from an arrow-hammer. So it is able to hammer in the nail easily without strength.
Chungnam, South Korea