I just bought a STANLEY Smart Pro Measurer, what is the coin looking part in the kit for? Support January 27, 2021 19:11 Updated Follow The coin looking thing that is part of the packaging is actually a magnet that helps to hold the packaging together. Related articles Where can I find information on STANLEY Over the Door Hooks? I have an old STANLEY power tool. Who can I contact regarding this product? 78-342 Impact Wrench Instruction Manual STFP70635 Air Compressor Instruction Manual Comments 0 comments Please sign in to leave a comment.