The Wartenberg Pinwheel was originally a neurological tool invented by Robert Wartenberg as a way of testing sensitivity as it was rolled across a person's skin. Today it is still used for that purpose, but has found other applications in crafting. You can roll it across fabric or leather to make starter holes for lacing. Each hole will be exactly the same distance apart. Other applications in wax and clay crafting as well.

* This Tool Is 7 Inches Long Overall, And The Rotating Head Is 1-1/4 Inch In Diameter

* This Pinwheel Is Made Of High Quality Stainless Steel, And Will Not Rust Or Corrode

* Use With Wax Or Clay, It Rinses Clean Easily- Can Also Be Placed In Boiling Water To Sterilize

* Used In Neurological Studies As A Way To Test Sensitivity And Feeling On The Skin

* You Can Use It With Fabric Or Leather Crafting To Make Starter Holes For Stitching

Overall Measurements Length: 6-3/4" Each spike is slightly less than a quarter of an inch