This odor box was designed and produced here at Leerburg. Ed Frawley was a K9 Handler on the local sheriff's department for 10 years. He produced his first K9 Narcotics Training video in 1986 and just released a new online course that he did with Kevin Sheldahl titled DETECTION DOG TRAINING that has over 300 videos. Size: 4" x 2.5" x 1.5"