Schmetz Embroidery Spring Needle, suitable for freemotion sewing, needle painting or sewing writing.
The spring takes the function of the presser foot. 

This needle is Size 80.
Sold Individually. 

Needle System: 130/705 H SPR

What the manufacturer says;
If you have never sewn using an Embroidery Spring Needle, beginning to work with one can feel somewhat unusual. Even the appearance of this special Universal Needle is greatly different from other needles: The spring that surrounds the needle takes on the function of the presser foot.

Sewing with Embroidery Spring Needles, also called freemotion sewing, needle painting, or freemotion quilting, is actually easier at the beginning if you increase the sewing speed significantly. To do so, the material must be moved slowly to prevent the stitch length from becoming too large. If you would like to start at a lower speed, we recommend moving the material very slowly, otherwise you run the risk of breaking the needle. Depending on the machine, you may have to reduce the thread tension (use a smaller number or turn to the left with older machines).

To be able to sew with the Embroidery Spring Needle, prepare your sewing machine as follows: Lower the feed dog as described in the operating instructions (you may not be able to lower it with certain types of machines; the feed dog toothing will be covered by a corresponding part). Remove the presser foot and lower the presser foot bar. Then insert the Embroidery Spring Needle and thread as usual. First apply a straight stitch and then begin with normal thread tension. We recommend doing your first stitching attempts on a scrap piece of fabric in order to check the thread tension. The stitch should look the same from both sides of the fabric.

Tips
To lock the stitches, first sew several stitches into the same position.
After this you can continue to sew using stippling or other designs, for instance. 
Create freemotion embroidery using a zig-zag stitch. Begin as normal to get a feel for it.
To create a satin stitch, move the material very slowly. 
"Sew write" your name to create a personal touch
Use multi-colour threads to create a special effect
Determine the stitch length yourself via manual feeding
Use washable or tear-off interlining for stabilisation purposes. 

Please be aware, needles are sharp and can also present a choking risk. Do not leave within reach of children and always supervise any minor using a sewing machine. Handle this item with care.