These are Medium gauge 3/4 size strings.

Pirastro says:

• Evah Pirazzi strings have a core made from a modern synthetic multifilament fibre which is wound with chrome steel.

• The all-round string set: suitable arco and pizz alike.

• The sound is big, powerful, dark and well-rounded.

• emphasized lower frequencies and outstanding resonant decay

• exceptional projection

• high torsional stiffness

• short playing-in-time 

• very quick response and comfortable left-hand feeling

• completely insensitive to changes in temperature and humidity