E string is not included. Size is for 4/4 violin. The price is already at its limit, so I cannot offer a discount. This is a set of Pirastro Violino violin strings. It is a new set of GDA strings. These strings are from the same series as Pirastro's Obligato, Evah Pirazzi, and Evah Pirazzi Gold, and have the lowest tension and warmest tone. Obligato is often said to have a sound close to gut strings, but Violino is even closer. The tone is so wonderful, it's a shame that it's not well-known in Japan. Please give them a try. Violino Violino