With 3 holders, and 3 sizes of needles, this kit is great for felters that do a lot of work and use different sizes of needles.
For a single needle, these are now my favourite design for a couple of reason. First, I can flip the needle around and tuck it into the the handle itself, it's made of a natural material, and it's soldi so it's nice to hold for long periods in time.
A single needle with no holder can make my hand cramp after a while. A holder prevents this for me.
The 3 holders means I can have my fine, medium, and course needle right there on hand, ready to use.