This is Marui-san's handmade genno (carpenter's hammer). It's stainless steel. Weight is approximately 235g. It's a long-necked type (No. 5) with a non-slip head. Please refrain from purchasing if you are overly concerned about details. Thank you. #Gumi (likely a nickname or brand) #Gumi (Japanese for "hammer") #Kanazuchi (Japanese for "hammer") #Wood #Genno (carpenter's hammer) #CarpentryTools #Kariwaku Genno (formwork hammer) #DIY #Small Genno (small carpenter's hammer) #Handle #Makita (tool brand)