Manufacturer Wistyria Editions Manufacturer part number W202N Availability Wistyria Editions Felting Needles 4/Pkg-Size 38 Triangle SIZE 38 -NEEDLES FELTING 4/PK Old price: $6.89 Price: $5.36 Qty: Add to cart Add to compare list Add to Wishes-N-Wants View WISTYRIA EDITIONS-Felting Needles. Felting needles are barbed needles used to interlock wool fibers. As the felting needle is moved up and down the barbs on the needles catch the scales of the wool and entangle them creating a material called felt. The 38 gauge star needle is a four sided needle that leaves a smaller hole in the felted surface. It felts slower than the larger gauge triangle needles but the detail is finer. Triangle needles are three sided needles. The 38 gauge is a general purpose needle used for medium felting that leaves a smaller hole than the 36 and is good for attaching felt to felt or to wool. This package contains four 38 gauge triangle needles. Made in USA.