DetailsToolzone 80Pc Rubber O Rings In Storage BoxBox of 80 assorted rubber O-rings. Provided in a handy plastic divided case. Ideal for most uses. 10x 10mm x 13mm (inner and outer diameters). 10x 11mm x 16mm. 10x 13mm x 16mm. 10x 13mm x 18mm. 10x 14mm x 19mm. 10x 16mm x 21mm. 10x 16.5mm x 21mm. 10x 14mm x 21mm.