The pendant made of 18kt gold plated bronze is 9.5 cm long and is available in yellow gold, white gold and pink gold. The pendant also comes with the necklace of the same material bearing the logo and siren number. The absolute innovation is that both the tail and the finely glazed bodice are interchangeable, with a simple gesture, they can be removed and replaced with others of various colors, including rhinestones or glitter. The apparent simplicity of the "click clack" that allows you to change your tail is the result of a meticulous and careful study that has been patented and that allows you to anchor the upper part of the siren to the bottom securely and precisely Fun game of color matching and materials.