This cleaning brush is very easy to use.Simply insert it into the straws and rotate it. Remove and wash it.It will be better to use with a little dish soap and warm water. If you do not use it, please keep it in a dry place. You can resuse the brush and it is dishwasher safe. 
 
BPA Free 
18-8 food grade
304 stainless steel
 
12 inches long