Q QINGGE cello string are made exquisitely out of high_quality material and adopted external advanced technology.<br>They have the character of pleasant timbre,good pronuncitation durability and so on.Q QINGGE musical strings are well liked of many music lovers<br>. Cello strings are suitable for size 4/4 & 3/4.<br> It is made of high quality solid steel core to avoid oxidation and have strong durability.<br>These cello strings are optimized to the needs of a majority of players.<br>Give you a different sound quality to enjoy<br> A_1st .025 inch 0.63 mm <br> D_2nd .037 inch 0.94 mm<br> G_3rd .048 inch 1.23 mm <br> C_4th 0.67 inch 1.70 mm <br> Package Includes:1 set (A-D-G-C)<br> Packaged in uniquely-designed sealed pouches providing unparalleled protection from the elements that cause corrosion<br>. Warranty:Normally we offer a six-months after sales service<br>. We will provide professionally technical guidance and perfect after-sales service. <br>Please don’t hesitate to contact with us anytime.