Save money with this long-lasting brush that last up to 10 times longer than other laboratory brushes and up to 20 times longer than other high-quality sponges. 
This extraordinary wash brush is designed specifically for washing laboratory glassware and plasticware. The special formula foam bristles do not absorb water and do not become soggy and limp. Special formula foam will not scratch, chip, or break glassware and will not mar plasticware. 3 x 2 1/2" brush. 18 1/2" overall.