:? Hi all need your help. What is it with seam rippers. I want to get a new one. The price I see is from $1.79 to $24.99. What is the difference? Don't they all just rip seams. I know some have mag. on them, some have lights. The ones I am talking about are just regular rippers. The one I have now has a sharp end and the other end has a round ball. Does the ball go between the fabric and the seam? Sounds dumb I know but.....