The drug test cassette is another widely used drug test kit in different industries. It is easy to use and convenient to perform at home or in the workplace. Employers and other organisations prefer this type of drug testing because it’s inexpensive and is capable of detecting up to 10 drugs at once. The cassette format is designed in a plastic compartment that allows for the convenient reading of the results. Two lines will appear if the donor is negative from use of illegal drugs. The cassette format detects commonly abused substances, such as marijuana, cocaine, valium, heroine, or morphine.