Helps prevent hazardous sparks when cleaning-up flammable fluids. Safe to use on delicate tile and marble floors; great on uneven floor surfaces. Use standard threaded handles for a secure fit; Use with 40225 Sparta[R] Spectrum[R] Self-Locking Flex-Tip[TM] handle (sold separately). Sanitary, solid one-piece construction minimizes possible contamination areas; reduces dirt and bacteria collection on Double Foam Rubber Squeegees. Integral blade eliminates seams and crevices inherent in conventional double foam blade; eliminates places for bacteria to grow.