I'm not familiar with sewing, so please judge based on the images. I'm also unsure if the combinations are correct. I hope someone who enjoys sewing will use these. The bag containing the small hook-like items has 12 sets each, but I haven't checked them all. The front hooks in the bag are unopened, but I believe the ones not in the bag are also unused. There are only 3 of the 2.5 cm ones. Images 10 and 11 only show one side, so they are extras. Please refrain from purchasing if you are sensitive to items being stored at home. Please comment if you have any questions. Front hooks Double front hooks Spring hooks Skirt hooks Hook and eye closures Trouser hooks