Josh from VA wrote (May 17, 2014):
Liked it but was just a little small for my 100 square inch racquet. It does a great job you just need to really pay attention and keep the stencil in place.
Item #: 31019
String Thing String Straightener
Gosen OG Sheep Micro 17G Tennis String
Prince Synthetic Gut Original 16G Tennis String
Luxilon Big Banger ALU Power Rough 16L Tennis String
Stencil Ink (Colors)