Scaled to fit 4/4 size violin with a playing length of 13 inches (328mm), these heavy tension strings will allow for greater projection and volume potential. This is a plain steel E (tin-plated high-carbon steel) with no winding. Packaged in uniquely-designed sealed pouches providing unparalleled protection from the elements that cause corrosion. Helicore violin strings are crafted with a multi-stranded steel core, resulting in optimal playability while producing a clear, warm tone. The smaller string diameter provides quick bow response. Premium quality materials combined with skilled workmanship produces strings known for excellent pitch stability and longevity.