If you are looking for pre cut ready to hook backing this is great. Each bag contains three pieces of backing with varying sizes, that are sorted into(small, medium, large) bags. Small can have sizes of backing up to 15 x 20 inch pieces. Medium pieces can have sizes up to 18 x 20 inch . And large sizes up to 20 x 24. 

• Packages are pre packed so pieces cannot be switched. 
• Backing does not come surged. 
• All packages are different and unique