tecnifibre x one 200m rulleTecnifibre X One is considered by many players to be the best multifilament string on the market. This high tech string is soft but durable due to its unique coating that allows new fibres to emerge layer by layer (until the string is too thin and needs to be replaced) when it wears out. It also performs well in tension durability tests, i. e. it maintains its kilo tension for a long time in comparison to other multifilament strings. This is a string