This picture is very misleading.  You think you are getting normal sized hooks but you are not.  See that piece with a top and bottom hole?  A pen would fit comfortably inside.  Those red tipped hooks are too short for a garden hand trowel .  Plus, they are too thin for the peg board holes so they hang down too much.  Even if they fit a bit better in the smaller peg boards as mentioned, they are way too short in length to serve a purpose anyway.  Return.