Right circular cylinder.
<ul><li>derivative work: <a href="//commons.wikimedia.org/wiki/User:Pbroks13" title="User:Pbroks13">Pbroks13</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Pbroks13" class="mw-redirect" title="User talk:Pbroks13">talk</a>)</li>
<li><a href="//commons.wikimedia.org/wiki/File:Red_cylinder.png" title="File:Red cylinder.png">Red_cylinder.png</a>: <a href="//commons.wikimedia.org/wiki/User:Jitse_Niesen" title="User:Jitse Niesen">Jitse Niesen</a></li></ul>
Attribution
<ul><li><a href="//commons.wikimedia.org/wiki/File:Red_cylinder.png" title="File:Red cylinder.png">Red_cylinder.png</a></li></ul>