In this age of concern over infections diseases, security, and liability, Glo Germ is an effective tool to demonstrate handwashing, surface cleaning, hygiene, and containment techniques. It is a big mistake to assume that your employees understand the critical nature of these simple processes-you have to teach them! Not enough can be said about the importance of cleanliness, proper handwashing and infection control. Since 1968, Glo GermTM has provided our customers with a fun and safe product that casts a revealing glow when exposed to Glo Germ'sTM U.V. light, turning the invisible into "germs you can see!" It's Easy to Use! The Glo GermTM Kit contains a bottle of liquid or gel, and an ultra-violet lamp. The liquid or gel and the powder (powder not included in this kit) contain the plastic simulated germs, and the lamp illuminates them to test the effectiveness of your (and your workers') practices. For handwashing training, Glo GermTM Liquid is rubbed onto one's hands like lotion. Then wash your hands or clean the area as normal. One's hands and the surfaces appear clean. However, the ultra-violet light tells a different story. The discovery of the remaining germs will cast a new light on your cleaning effectiveness. Protect yourself, your customers, and your bottom line! The Glo GermTM products demonstrate germ communication, cross-contamination, effectiveness of sanitary practices, and more! Illuminate the weaknesses in your techniques with Glo GermTM and protect your self, your customers, and your bottom line! From Globright, You get two, two ounce bottles and now this kit comes with a new UV Flash light. Requires 3 AAA batteries not included. Caution do not shine light directly into eyes.