Chinese Erhu Strings, Erhu Accessory, Inner&Outter String(1 Set) Include : 1 Inner string + 1 Outer string Material : Steel Place of origin : Beijing, China Note: This item Amazon Fulfills also includes 2 packs of strings, one outter string and one inner string. In case of any omission, the 2 packs are sticked together with transparent adhesive tape. If you cannot find both of the strings, please just recheck the packaging, or contact us for help.