Trace Eye-D W42 detects cannabinoid residue on surfaces, clothing, and objects in seconds. Snap the pouch to activate, wipe the area, and look for a deep purple color reaction. Detects Delta 8, Delta 9, Delta 10, THC, CBD, THC-A, THC-V, and THC-O. No glass ampoules, no lab equipment, no waiting. Made in USA. Trusted by law enforcement. W42 provides presumptive identification. Results indicate likely presence; laboratory confirmation is required for evidentiary purposes. For use on surfaces and objects only. Not for use on skin.