The BLACKROLL® GROOVE STANDARD has the same density level as the BLACKROLL® STANDARD, so it addresses a wide spectrum of applications. During fast rolling, the additional grooves on the surface cause a slight vibration effect, providing additional support for blood circulation of the tissues while warming up and stimulating the receptors in the connective tissues and muscles. The BLACKROLL® GROOVE STANDARD is particularly useful in performance sports. 1) Structured surface for new stimuli, 2) Average hardness, 3) Vibration effect during fast rolling, 4) Stronger massage effect
Dimensions(cm) : 16 (L) x 16 (B) x 33 (H)