The design of KOIKE'S MK-150 is rugged and simple. This also result in a fine balance that makes it very easy to use. And in line with Koike's policy of even greater safety, a three seat tip-mixing system has been employed. This is because the three seat tip-mixing system substantially reduces the risk of flashbacks occurring. And even if flashbacks occur, damage to the torch is reduced to the minimum. If you use KOIKE tips, you will have the benefit of an even greater safety margin, as KOIKE tips have a special design which makes it hard for any flashback to happen.