Scent work - 1.5ml eppendorf tube with small piece of kong

1.5ml eppendorf tube  used for scent work  with dogs.
With a 1cm x 0.5cm ( rough size ) kong piece.
Ideal to for our UK sniffer dogs course, but other scents can be used in it
THIS IS NOT A TOY.
DO NOT LEAVE UNSUPERVISED