100/bxSparkle is a smoother running prophy angle with a brighter, more visible body and higher contrast soft cups. The patented 2nd Generation beveled gear design is vibration free, smooth running with no noise, or overheating. Sparkle's beveled gears are engineered precisely so that their pitch surfaces are mounted securely and firmly when engaged for superior performance. The nonslip contour reduces hand fatigue and micro-traumas. Dark colored soft cups have a better visibility and contrast with teeth Light colored shell for improved visibility in the mouth Perfect cup flare improves sub-gingival access Reduced splatter, which helps minimize cross contamination 100% latex free