If these are ruler feet that attach to the embroidery machine, yes. They work great but you do have to practice a bit first on scrap fabric to get the idea of it. After that, real nice.

Saw them on facebook, they are for quilting free hand, they look easy to use,..wendy

I only have the Dritz Longarm Stitch in the Ditch ruler. (2nd-link) I used it on the black/yellow sunflower quilt to keep my lines straight for my grid stitching. (3rd link is photo of straight quilting, using ruler) It is very thick for my longarm, however they have thinner sizes for domestic (regular) machines. Be sure you get the right ones.
Need thick for Longarm, but won't work for domestic. Your part that holds your needle will hit the ruler thickness, stopping your needle from going all way down, to make your stitch. Same way with domectic rulers. Can't use those for longarm, as the ruler will slip under the foot.
It does take some practice holding the ruler in place while also moving the quilt. About a year ago, I used my friends handi-versa-tool ruler (see 1st link) for practice but have not bought one. I could maybe stitch a wall hanging using them, but I would not try a bed size. Not me anyway. Too hard on my shoulder,wrist and hands.

I have the Bernina ruler foot and their set of rulers. Both are rather expensive. I have used them so far for small projects only. I find it rather hard to get used to keeping the ruler in place and move the quilt at the same time. Trick seems to be to hold the ruler with a few fingers and place the others next to the ruler so you move both hands together. But my ruler seems to have a mind of its own and slips if I'm not careful. More practice needed!
I would not buy the crazy quilt one, meandering is simple enough free hand.

Are they shown on you tube? I would like to to seem used.

Sometimes I think that while these products can work well, they really aren't any better than traditional techniques for me. But then, I'm really not trying to make perfect projects. I can see where they would help with precision.

I have a set of these type of rulers and the special foot that runs in the "groove" of the ruler...They take some practice...My personal experience is that they work great on small projects, say under 45" x 45"....BUT I have tried several times on a 72" x 85" quilt with absolutely no success...The quilt is too heavy to move smoothly and I have found that my machine skips stitches due to the weight and mobility of the quilt with the ruler...Also, on a larger quilt I am able to move forward, but not backwards or in the side directions...Notice that you never see a demo on a large quilt, only a small quilt sandwich. If anyone has any tips on how to use these on a large quilt, I need those tips!! If I had known about the larger quilt "restrictions" I probably would not have purchased these...they were quite pricey!

I do better myself with the free motion foot on my machine. I have more control. With these [I tried a friend's] I lost the control and too hard to hold all the fabric of a quilt under and hold these in place also. Maybe with a lot of practice but I am too impatient for what I can do without them. They are expensive and I'd rather have other things. I sent you an email a little while ago, not sure if you recognized it--wondering how John is doing???

Well, i ordered them as John wanted to know what i would like for our ann. Will let you all know how i make out:):)