This is our famous Thief Detection 'invisible dust' kit. Powders are specially formulated, dry and finely milled. When it is applied to surfaces using the included dust brush, the powder will be transferred and cause invisible staining to the skin and clothing. A totally dry and non-toxic application, easy to use and a great way to catch a thief. Supplied as a comprehensive kit with 20g Invisible Powder Red, Yellow or Orange Powerful X15 LED UV Torch Dusting Brush Application Gloves User Guide. For your peace of mind all our theft detection products are sent under plain packaging.