.. goods . for . beautiful design , but ........ total .... also ..... product . ....... till aluminium large rental .. whole ..... -ply . . .
whole . made of metal . therefore .. sound ......... low sound ..... off .. environment also .... product think .
correspondence ...... diameter 6 millimeter .9.5 millimeter till ..... depth adjustment . is possible to do .
exclusive use clamp attaching .