K Nail Bar opened March 1 in Round Rock at 311 University Blvd., Unit 400. The nail salon offers manicures, pedicures, waxing and other nail care services. It is offering 10% off services. The salon is open weekdays from 9:30 a.m.-7:30 p.m., Saturdays from 9:30 a.m.-6:30 p.m. and Sundays from 11 a.m.-5 p.m. 737-209-0099.