NEW Ballet Beautiful Prima Pro Satin Slippers With Ribbon *DEFECTIVE* (Navy)

These are BRAND NEW, never worn, but there is a "defect" on the back of one shoe. It appears to be some type of glue? And also maybe a loose thread? Comes with the Ballet Beautiful canvas storage bag. Description from the website: Step up your workout style with our Prima Pro Satin Slippers with Ribbon.  These gorgeous shoes have a slight stretch to them and an elasticized drawstring. The full leather sole adds a nice grip to your mat work. The matching ribbons give a dash of “Is she en pointe?” glamour and mystery. Yes, your ballerina dreams can come true!