You are looking at a rare die-cast medal from Singapore's 5km running event "Transformers Run" (licensed by Hasbro), featuring G1 Optimus Prime & Megatron on each side. Can be used as an ultra-cool bag tag as well. Measuring 3"x3.125" & weighing close to 3oz, this is one piece of solid metal that doesn't scratch or break easily. 100% brand new & not available elsewhere or in stores!