replacement washer - garden sprayer valve

Replaces my lost washer that holds the release value together for my garden sprayer.
OD 8.5mm
ID 3.5mm
The little plastic washer was lost by a loved one while using the sprayer unsupervised. lol
30 minutes later (5 minutes measuring, 15 minutes tinkercad, 10 minuters printing) all is right in the spraying-things-world again.

also to help educate your friends and family, best I have found under 2 minute slightly amusing, simple & straight forward explanation of home 3D printing, (made by and for schools):
http://www.youtube.com/watch?v=YpHv19jdloI