The sponge brush have served their purpose for a bedsheet-painting. However, the bond went off very quickly. For the price it was okay for me but the very simple handle easily with an adhesive strip again with the sponge to join. Take the paint on okay and at the beginning they also make sharp lines possible. The life is very low. But for the price and a one-time use, I have not regretted the purchase and happy about the three different sizes.