This Babolat M7 is a comfortable string with controllable power. The string made up of seven 100% polyamide monofilaments and an innovative PA+PU matrix that provides a longer lifespan and a high level of comfort. This is pliable enough to reduce impact shock, while also remaining wonderfully crisp. Offers impressive all-around playability to non-string breakers. It is highly recommended for those who prefer multifilaments to poly strings but wish for more durability.