This window scraper for cleaning solves the trouble of persistent contaminants stuck on smooth hard surfaces. Sharp flat blade effortlessly strips tape residue, sticker leftovers, paint splashes, cement marks and limescale without excessive friction damage to glass, mirror and ceramic tile. Integrated safety lock design secures the blade during cleaning, and the blade can be retracted completely when idle to avoid accidental scratches. Ergonomic non-slip handle brings stable control during continuous cleaning work. The replaceable blade structure enables easy blade swap once dull, extending the service life of the tool. Suitable for residential window daily maintenance, commercial glass cleaning, post-construction site cleanup and bathroom surface care. Custom dimensions, handle colors and logo printing are available for overseas bulk buyers.