Quirky gift for those that love science or unusual jewellery. What is it like? ■ Fibonacci series/ golden spiral keyring. ■ Approximately 3 x 4 cm. ■ a stainless steel keyring with silver colour coloured alloy spiral. ■ Derived from the Fibonacci sequence also known as the golden spiral. This pattern is significant in mathematics and appears in nature. Do you have matching items? ■ I have a smaller size spiral available as a necklace. ■ If you prefer the larger size you can request a custom order. What sort of messages do people write? ■ Customers have purchased this pendant for graduates, friends and gifts for themselves. Other details ■ All text can be personalised ■ All orders are gift wrapped for you What can I personalise and how do I do it? Select 'add personalisation' and this will let me know to add your personalised message to the bottom of the backing card and alter the title if you would like a greeting or more detail. Please do not leave your request as a gift message. This is a message printed on the packing slip not on your backing card. Enter the personal message and any icons you would like including (see pictures). Feel free to include any other specifics e.g font size, position of the text and changes to the heading. Please note: Your order may vary slightly from the picture due to the shade of card from different suppliers and changing the size to accommodate your message. If you have any specific requirements please let me know. NEW-If you would like a note card adding with your own handwritten note from you have a look at this listing: https://www.etsy.com/uk/listing/846694404/