Satin Nickel Door Knocker Solid Brass$5 FLAT RATE SHIPPING!If you are interested in a different finish please, Email us!Size: 6 1/8 X 3 3/81. Place tape inside and outside door surface at drilling points to help prevent wood splitting.2. Tape template onto door.3. Drill 1/4" holes through door.4. Place washer on screws and insert through door.5. Place door knocker on outside of door.6. Fasten screws.7. 6-1/8" x 3-3/8"(151mm x 86mm)Polish with a soft cloth. Do not use abrasive waxes or cleanerscustomerservice@boltonhardware