It is much smaller than I expected. The measurements are not given in the description (the first clue). It's a bit smaller than 6 inches by 8 inches. If someone is just walking along a path they could very easily miss it; so if you are planning on surprising people with this, forget it. They will have to see it and purposely step on it to activate the prop. I wanted something they could walk across without realizing what it is for. Also it is orange and black instead of yellow and black, and the letters do not stand out like yellow would.
Rating: [3 of 5 Stars!]