The force exerted on the bristles when spinning is very low in comparison to the squeezing and pulling action used when cleaning brushes by hand. However when changing from wet to dry, bristles can be delicate. For natural bristles especially, please only spin dry for 3-5 seconds then stop. If any of the bristles do stick out, please use a damp cloth to mould them back into shape and leave them to air dry. As part of our testing we repeat tested a range of brushes 500 times, to see how they were affected. The results show that there was little to no affect on the bristles. It works with a range of natural and man made brushes.
The 8 silicone collars or 'hoods' have be especially designed to hold any brush handle which is between 4mm and 30mm in diameter. We have tested the Cleaner with a huge range of brushes. However the brush must have a rod or shaft-like handle. The Cleaner cannot hold flat handle brushes.
We advise you add a small squirt or pump of anti-bacterial liquid soap into the bowl first, then add as much water as is required to cover the height of the bristles. Try to avoid letting the metal part of the brush (the area that holds the bristles) to get wet as this may damage the bristles.
Shipping generally takes 2-4 weeks depending on location. Some distant areas can take a bit longer, but we'll get it to you!