Strong tightness offering excellent resonates, Normal and Hard tension for ChooseGood feeling, Long life Service, full tone.The strings of -NX 35-C series has strong durability, clearly timbre and feeling comfortable. Model: NX35-CHigh-Quality Nylon + PolyesterNylon CoreColor: BlackSilver Plated Copper WoundNX35 - Hard Tention: E-lst Clear Nylon: 0028 inch / 071 mmB-2nd Clear Nylon: 0032 inch / 081 mmG-3rd Clear Nylon: 0040 inch / 102 mmD-4th Silver-Plated Copper Wound: 0030 inch / 076 mmA-5th Silver-Plated Copper Wound: 0036 inch / 091 mmE-6th Silver-Plated Copper Wound: 0045 inch / 114 mmPackage: 1* (6pcs/set)Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.