This specific tool handle material is called a hybrid. This wood species is American Russian Olive Burl from Idaho cast with resin (pearlescent bright pink). I stabilize the woods and cast all hybrid blanks in my shop
It features an ergonomic comfortable handle that feels good in your hand when you're unpicking seams or guiding fabric under the needle
Featuring a Japanese super sharp seam ripper blade to take out stitches fast. The other end is a stainless steel stiletto with a sharp point. The stiletto keeps fabric from moving when you sew seams, and it's great for grabbing loose threads or adjusting fabric.
Both the ripper and stiletto blades come out and can be reversed. This keeps them safe, sharp and makes them last longer. This ripper is roughly 5 1/2 inches long when closed, and about 7 inches long if both ends are open. They're handy for sewing and look good too.