Multifilament
This type of string is composed of many filaments woven together in different ways. The most common materials are polyamide (PA), polyurethane(PU), etc. They are used universally and adapt to all kinds of players.
Pros: They do not lose their reference tension, are powerful and comfortable, do not cause vibration, and protect the elbow. A comfortable string that is very flexible, perfect for the player looking for great touch and comfort.
Cons: Its durability is low compared to monofilament stringing.
Monofilament
These are polyester strings. The string is composed of a single filament. The shape of the string can be round, pentagonal, hexagonal, octagonal or decagonal.
Pros: This type of string generates more control over the ball and a bounce that allows the player more acceleration, lift and control of the ball. It grips the ball well and therefore generates more effects.
Cons: Quickly loses its reference tension, and generates more vibration.