Blackroll Groove Standered-Black YOGA BRICK Sponge-padded heavy duty spacer mesh

Sponge-padded heavy duty spacer mesh at back of hand for better flexing and comfort

Material :Rubber | Core/Bladder Material :Synthetic Rubber | Construction Type : Moulded | Waterproof :Yes

Butyl bladder offers lasting air and shape retention to ensure uniform game

HEAD's most comfortable and most premium multifilament string

Blackroll Groove Standered-Black YOGA BRICK Sponge-padded heavy duty spacer meshThe 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)