Size 21in = Approx. 57cm in length, suitable for 21-inch ukulele.(Soprano)<br>Size 23 / 24in = Approx. 65cm in length, suitable for 23/24 inch ukulele.(Concert)<br>Size 26in = Approx. 69m in length, suitable for the 26-inch ukulele.(Tenor)<br><br>If you are unsure of the size of your ukulele, we recommend that you measure your ukulele first. The ukulele bag must be longer than your ukulele. Please note this! . .<br>Bohemian style Ukulele bag which made from exquisite knitted fabrics. Add special sponge 10mm thickness to provide strong protection. In addition, it has a waterproof design. It can be used as a backpack or handbag, very convenient. You'll love it. HOT SEAL Is Our Company's Original Registered Trademark. Only the Seller【Sunny & Quality】has Been Authorized Sales,please Note This !!!