All plastic construction will not rust. Use standard threaded handles for a secure fit, 40225 Sparta Spectrum Self Locking Flex-Tip handle (sold separately) to support your HACCP program. Integral blade eliminates seams and crevices inherent in conventional double foam blade. One piece design superior to double foam blade. Available in 5 HACCP friendly colors to help prevent cross contamination. Safe to use on delicate tile and marble floors. Helps prevent hazardous sparks when cleaning up flammable fluids. Great on uneven floor surfaces. Eliminates places for bacteria to grow