2 set household products:1 x Oxygenation Diffusion Stone & 5 x Beer cleaning tools Use these small brushes to clean tough stuck on grime in your beer faucet Also works great to clean homebrew 3 piece airlocks Twisted metal handle stay firm during the most vigorous cleaning sessions. Eye hook allows for convient drying and storage on a hook or string TOP QUALITY -- high temperature and NO BLOCKING -- Millions of tiny pores can carbonation beer and soda prior to fermentation quickly,the Micrometre stone is perfect to force carbonate your kegged beer or as an aeration stone prior to fermentation.Not easy to get clogged as long as it's ungreasy A MUST HAVE -- A must have for Homebrewers who Carbonate in Kegs Made of stainless steel 316, stainless 304. Perfect for carbonation of Beer or Soda. EASY TO USE--Just connect your oxygen regulator or aeration pump to the stainless steel diffusion stone and aerate your wort as beer flows through . Connects inline with any kettle, pump, or counterflow/plate wort chiller 2 Micrometre Single Oxygenation stone 1/2 inch NPT Male Fitting 1/4 inch Barb attachment for oxygen regulator or air pump connection colour:Silver + White Material:metal + Nylon size:5cm + 20cm long Package Contents: 1 x Oxygenation Diffusion Stone 5 x Beer cleaning tools Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.