Henry L. from Georgia wrote ( see my feedback ) :

Excellent Product, simple design, easy to use.

I wish I would have purchased the tool sooner.

Follow the instructions, and you will save time and effort.

TOOL # 3 is for ring size 3 ( and size 2 )  only

and comes with 12 * rings size 3

- see ring size chart pic 3 -
*  2 rings for free , if ebay charges separate sales tax .

Walter's  insertion  tool  

Very simple  - easy to use - most helpful - long lasting.

1 durable white plastic rod  

New : 2 special coated metal tubes to insert o-rings easily -

and a 1 hook to remove rings.

Same ring size as 3M 0351-10  and 0351-25 for metal housings MH2 and MH3 .

Compatible with Intra-Lock extra small housings and many others.

ID 1.1 mm ( fits 1.0 and 1.2 too ) OD 3.6 mm .

Best quality nitrile rubber, leading companies first choice.

CLICK HERE to see all my rings and tools

After shipped out you get an email with a link to illustrated instructions.

Free  shipping