Avery is part of our ready to wear collection so it cannot be perosnalised. Just simply put the bar into the toggle and turn the bar horizontally to lock in place. Our pieces are made with 18k rose gold, white gold and 925 sterling silver filled chains. Our pendants are crafted from rhodium and rose gold high quality plated materials and are nickel and lead free . Measurments are as follows : Approx: Bar Length 2.1cm/0.79" Circle Diameter 1.5cm/0.59" Hole size: 2mm( 1/8")  Styles and colours may vary according to stock* Please choose the length carefully as we charge a remake fee should you decide to change the length. More information in our FAQs.