ALL the pieces you need to make it a 24" square is included.
So is the Amazing Hugo Tape (I already have a 1" wide roll of it).
When I rejoin the AQS (American Quilter's Society) I will be saving
$13.99 on the cost.
For me it gives me all the sizes I normally use within 1 ruler I like that
part. As for the hammer. easily obtained online at a cheaper cost.