⋱Special offers are listed in my profile⋰ 【Instant purchase OK!!】 #minminshop ※Free shipping ♪(*´˘`*)♡ 【Application】For cleaning, deburring, and removing scale in places that are difficult to reach with ordinary brushes, such as the inner diameter of pipes and the inner surfaces of screw holes. Used by attaching to an extension handle. Cleans test tubes, nozzles, dishes, keyboard gaps, and other parts. Test tube brush, spiral type, wire tube brush, tube brush, spiral twist, 5 pieces, copper wire, screw specification I received this as a gift, so I don't know the details. Please understand that this has been stored at home before purchasing ( ⁎ᵕᴗᵕ⁎ ) Heyiarbeit tube brush, wire brush, straw brush gmi24622001000