Hi Ritacarl,
These are different pre-cut fabrics you can use for projects that are designed for these pre-cuts to make it easier to quilt without so much cutting. They are also from one fabric line or manufacture so they are coordinated in color and design.
Charm Packs are 5” squares
Jelly Rolls are 2 ½ “ x 44” strips
Layer Cakes are 10” squares
Turnovers are 5 7/8” triangles
Honey Buns are 1 ½” x 45 strips
Here is the URL for Clotide, you can look at them there.
http://www.clotilde.com/