Opti-Force® Horse Fly Mask Brand_Midwest Air Technologies A rich blend of digested

A rich blend of digested organic matter left behind by earthworms

It works on humans too

feed your puppy all it will eat in a 20-minute period

Harmful if swallowed

Available on One-Touch and RainSelect Rain Wand model

Opti-Force® Horse Fly Mask Brand_Midwest Air Technologies A rich blend of digestedEquine Insect Control Fly Mask This product provides built in, invisible and odorless insect protection. Designed for the comfort of the horse, the mask repels mosquitoes, ticks, flies, and fleas and can fit horses weighing between 9001,200 lbs. Repels mosquitoes, ticks, flies, and fleas (including insects that cause Lyme disease and West Nile virus) Comfortable design keeps the mask off the face and away from the eyes Fits horses weighing between