The TRS Lacrosse Ball is great for breaking up muscle knots and hard-to-reach trigger points.
The Ready State Virtual Mobility Coach is like having a virtual Kelly Starrett in your pocket.
Use it on your traps and delts after a heavy upper body workout.
"The Peanut" is basically two lacrosse balls taped together to make a shape that looks like a peanut.
Lightweight and small enough to toss in your bag and take with you anywhere.