Wecoline melamine stain sponge 11x6.5 cm white is a powerful stain sponge for removing stubborn streaks and stains on smooth surfaces. The melamine structure acts as a fine abrasive layer that removes pencil marks, shoe marks and dried-on dirt without the need for additional chemicals. The sponge is ideal for doors, window frames, tables and walls in schools, offices and healthcare institutions where quick results are desired.