1. Heavy metal frames are zinc plated ;  
2. Corrosion resistant and feature a built-in scraper to remove stubborn stains ; 
3. Durable blades are secured with rust resistant screws ; 
4. All floor squeegees use straight or tapered handles , depending on choice of  lengths ; 
5. Fits industrial ,professional and commercial use ; 
6. Replacement rubber blades sold separately .