tonight look particularly dangerous but it can be extremely dangerous, especially when they're being inflaltedt around the tire, you see a tire changing cage built around this large tire. the tire is enormous. but when they inflate it or o r overinflate it, watch what happens. >> what? >> they bent the cage. when they're putting a new tire on one of those earth movers, they put it inside the cage, design to retain the three-piece wheel inside if it does get overinflated or pop on a job site, it will protect the guys working around it. it completely destroyed the cage but it does contain a large three-piece wheel inside. >> it's amazing to me that it explodes, that this tire explodes. it blows up. >> this is a test to prove the efficiency and efficacy of this cage. accidents do happens, tires do get overinflated but if it does happen, it can stop it. >> it's your chance to win a 42 inch flat screen tv, be 18 years or older, a u.s. resident and enter buzz page. tap on the mobile link. steven time to reveal tuesday's buzz word. it is candid. go to our web either and enter tuesday's buzz word, can