Red Gasket Case back Assortment, 90 pieces in total, in 30 different sizes.

Sizes in millimeters: inside diameter x outside diameter x height

17.34 x 18.50 x 0.9

17.84 x 19.00 x 0.9

18.34 x 19.50 x 0.9

18.84 x 20.00 x 0.9

19.34 x 20.50 x 0.9

19.84 x 21.00 x 0.9

20.34 x 21.50 x 0.9

20.84 x 22.00 x 0.9

21.34 x 22.50 x 0.9

21.84 x 23.00 x 0.9

22.34 x 23.50 x 0.9

22.84 x 24.00 x 0.9

23.34 x 24.50 x 0.9

23.84 x 25.00 x 0.9

24.34 x 25.50 x 0.9

24.84 x 26.00 x 0.9

25.34 x 26.50 x 0.9

25.84 x 27.00 x 0.9

26.34 x 27.50 x 0.9

26.84 x 28.00 x 0.9

27.34 x 28.50 x 0.9

27.84 x 29.00 x 0.9

28.34 x 29.50 x 0.9

28.84 x 30.00 x 0.9

29.34 x 30.50 x 0.9

29.84 x 31.00 x 0.9

30.34 x 31.50 x 0.9

30.84 x 32.00 x 0.9

31.34 x 32.50 x 0.9

31.84 x 33.00 x 0.9