Kirsch Lock-Seam Standard Curtain Rod 18"-28" Adjustable Width and Projects 2" It's back to the basics with this standard lock seam curtain rod. Temporary or permanent, this rod will simply and durably dress up your windows. The lock seam feature provides added durability. The Projection is the distance from the wall to the front of the rod. The lock-seam rods are wall mounted and very easy to install Lock-Seam Curtain Rods are coated inside and out, with no exposed edges. The "lock-seam" design gives the curtain rod that additional strength needed for medium to heavy curtain fabrics. Threader attached to the rod ensures smooth, no-snag shirring. Heavy-Duty Brackets provide greater support; prevents hole tear-out. Tapered prong prevents rod lift-out. The Package Includes the Curtain Rod, Mounting Brackets, and any other supports needed for installation. This Curtain Rod is easy to install and extremely durable. This is an authentic product by Kirsch and includes all necessary installation hardware and instructions.