Obrien Windsurfing Mast Retainer Buttons - Replacement Part

Question
When installing the mast onto the base there are two buttons that I must push in so the mast will slide into the base. When installed and aligned these buttons pop out to secure the mast. I have lost this piece and need to find a new one for my Obrien board. Any idea what the name of that part might be so I can do a search for it? Or a recommendation as to where I can find it?
Thanks for your help.

Skip

Answer
Hey Skip,

Here is a place to buy the part you need.

http://www.oceanairsports.com/prod/ProgressionFrontEndPushPins01-02209.cfm?Inven...

Hope this helps.
Keep on sailing,
Windlover