looking for feature

hey guys i am searching to get a feature in ge=arrys mod but i don’t know what it is or where to download
http://s3.garrysmod.org/img/cache/1/2/9/4/6/218d8d91a9620cebcc6e3f695433c0dd.jpg
the lines on the prop

greetz from me
and thanks in advance

SmartSnap

thx guys