Hanging curtains has never been easier! Our expandable curtain rod adheres to both metal and woods surfaces without drilling or damaging the finish. The secret is the 2 strong magnetic supports. Fasten each directly to metal surfaces or frames. For wooden surfaces, use the metal plates with the peel and stick backing to create an area for the magnets to adhere. Expandable from 17" up to 30 1/2", this universal rod is ideal for windows and doors. No tools required.