Deep Recovery Travel Size Foam Roller A high density LIGHT-DUTY travel roller with 4" diameter, also known as a mini foam roller Great on back, lats, shoulders, quads, hamstrings, delts Fits in your travel or gym bag to keep your muscles loose when you're on the go Smaller diameter makes it especially useful for myofascial release, deep tissue work and trigger point release Makes a good pillow for using with Deep Recovery's Body Track