Toolcraft o ring assortment 225 piece box set toolcraft 6212 this o ring assortment from toolcraft has 225 pieces in a box set featuring rubber sealing rings for use in plumbing threaded joints automotive applications etc p content 3 x 1 4 x 1 4 5 x 2 5 x 2 6 x 2 6 x 2 5 6 x 3 7 x 2 8 x 2 9 x 2 10 x 2 12 x 3 13 x 3 14 x 2 5 17 x 2 5 18 x 4 20 x 2 22 x 2 mm the individual sizes in multiples of 5 or 20 are presented in a handy hinged box p toolcraft 6212 o ring assortment 225pce