I use a size 11 or 10 quilting needle. And as stated earlier to hand quilt look for thread that says for hand quilting. This thread is "coated" and will not tangle or knot. Also you don't want to use a length of thread longer then 12 to 14 inches. I sometimes do but then I run into trouble with the thread twisting or knotting. I simply can not use a hoop. I use a wooden quilting frame. I have to use my hand under the quilt to guide the needle. I've tried the hoop but didn't like the stitches I made. Guess it's what you get used to using. Happy quilting!