Amphibia Brass Door Knocker Our Amphibia door knocker combines elegant and tactile form with the unexpected bonus of a delightful passenger. Inspired by an age where even the most functional items were designed with imagination and wit, our whimsical frog is a symbol of truth and change. We believe that makes it a perfect omen to pass by every day. Our exclusively designed, timeless door knockers are hand crafted in solid recycled brass by skilled British craftsmen, using age old casting techniques. Matching letterbox, door pull and house numbers available in our shop Available in 5 finishes: Unlacquered Brass Polished Brass Polished Nickel Matt Nickel Satin Black Product Size: Height: 17cm/ 6.7in Hinge base width: 6.5cm/ 2.56in Projection: 7cm / 2.76in Weight: 1.258kg/2.87lbs Installation This door knocker can be installed on wood, Upvc and composite doors. We provide all the fixings as well as a handy drill hole template. For security purposes this knocker is attached through your door and secured on the inside with decorative bolt caps. Every door knocker is supplied with the components to fit to a standard thickness door and a drilling template to take the guess work out of where to make your holes! Tools needed - A drill and suitable drill bit to make a hole for a 6mm (6M) bolt.