Specially formulated bong cleaners with non-harmful abrasives for your flower bong or dry pipe are essential for cleaning your piece. Tools such as cleaning kits with brushes can also be found here. The built up resin from your bong often deters from your sessions, taking away from the enjoyable flavour of your flower. Keeping your piece clean avoids this negative aspect of glass pieces. These cleaners are typically isopropyl alcohol-based or acetone based.