I like these tabs!  I have tabbed about 6 Bibles so far (for family and friends) and these tab are the easiest to apply and are quite durable.  I like the color coding of them and the animal characters adds some fun to these tabs!  The font is large enough to be readable but not so large to appear "kiddish".  My Bible is 9" wide, so there are 9 tabs per row (each tab is about 3/4" long).