This responsive Ethical Harvest Deer Reactive target provides instant feedback, leaving no doubt as to where your rounds have impacted the vital organs. The vital organs are made of environmentally safe, highly visible gel. Developed with a Navy SEAL, and endorsed by professional hunters, this 100+ round target was made for most calibers. It is a great training tool for hunters of all skill levels, from beginner hunters to advanced levels. These Shooting targets promote and reinforce the importance of round placement for ethical harvesting, ensuring you take home that trophy buck! The lungs and heart are represented by different colors, providing easy-to-identify round placement. The water-soluble gel will not stain. Additional grid targets are located above the torso to maximize the use of this fully reactive target for shooting.