Command Classroom Decorating Strips, Easy On, Easy Off, Multi-Pack Adhesive mounting strips Secure calendars and other flexible objects to walls No sagging or falling Strips hold firmly, yet remove cleanly Pack includes 48 adhesive strips Adhesive mounting strips Secure calendars and other flexible objects to walls No sagging or falling Strips hold firmly, yet remove cleanly Pack includes 48 adhesive strips After painting, wait at least 7 days for the paint to cure before applying Command Picture Hanging strips.