The Gorilla have become endangered through hunting and destruction of their natural habitats. Kikkerland would like the magnificent animals to be around for a long time to come. Hence these long lasting oversize erasers made from PVC-free TPR. We hope that when you use one of these erasers you will be reminded of the real thing big beautiful animals that need your help to survive. 2% of sales will be donated to helping endangered species through the Center for Biological Diversity.