Black Diamond Stopper 13 Piece Set Nuts Rock Climbing

Black Diamond stoppers. Set of 13. Please check below as there are some duplicates of the same size. They show some signs of use, but as far as I can tell, there are no breaks. All are Black Diamond brand, with a C mark inside the diamond.
#13 x 1
#12 x 1
#11 x 1
#10 x 1
#9 x 1
#8 x 2
#7 x 2
#6 x 2
#5 x 1
#4 x 1