I bought these so that my kids could use them when traveling on a recent day trip. I hate taking disposable stuff in the woods because with small children, wrappers get dropped etc. We live by only leave footprint rule when we leave the woods. These were great because they can be taken out, used and then put away and brought home. My kids love the little case that they came in, and it helps them keep track of where the straw is. Otherwise it would end up on the ground and lost. Its very small and compact to travel with. We came across a park ranger who loved the idea and said he planned on getting his kids as set as well.