What is this? ๐Ÿ˜‚๐Ÿ˜‚

๐Ÿ‘จโ€๐Ÿ‘ฉโ€๐Ÿ‘งโ€๐Ÿ‘ฆ๐Ÿฑ ๐Ÿ• ๐ŸŒŽ ๐Ÿ’˜
My husband thought it was a shoulder joint (like a shoulder replacement) ๐Ÿ˜‚๐Ÿ˜‚๐Ÿ˜‚