The hoop is made of 4 glow stick bracelets that my 3-year-old daughter Tzivia got for Halloween. She made them into a hoop, and my husband Charles decided to see if our dog Lupin would jump through it. I thought, NO WAY, because that hoop was TINY, but he did it right away! My husband is using Tofurkey vegan "meats" as dog treats, as we're a vegan family. My daughter is crawling all over him as he tries to do this -- that's life with a 3-year-old! I assure you we gave her back her glow bracelets and played and played with her right after, haha. Lupin is about 7 years old. We adopted him from the Seattle Humane Society in 2011. We did his mail-away gene test once, and he's half bichon frise, 1/4 miniature poodle and 1/4 miniature pinscher.