Help with Size of Textarea box

[sek]

I am using the Product Attributes - Option Type Feature v1.7.2 and when I select a product to use the Textarea box, the box itself is really small. Where in the code, what page, do I need to edit so that the box is larger on the product info page?

 

You can see it here - http://www.stitchinit.com/store/product_in...&products_id=41.

 

Thanks,

 

Susan Keifline