a putter head includes a first half member , a second half member , and an insert . the first half body includes a first metal , and has a face surface on a front face . the second half body includes a second metal , which is higher in specific gravity than the first metal , and is attached to the forward half body . the insert is disposed inside the first half body to be along the face surface and includes one selected from a group consisting of a synthetic resin and a rubber .