Actual length is 16", this frame is designed for use with 18" Mop Pads. Mop pads cling to the frame with hook and loop. Our new design is durable yet lightweight and will keep you cleaning efficiently for years. Made from heavy gauge aluminum and with a full 360 degree swivel! Molded plastic hook and loop strips which sits in recesses in the aluminum will never separate from the frame. Use with our 20 inch microfiber mop pad.