Item Details 『Measurements』 Length: 14.5 cm (5.7") Not include ring. Width: 1 cm (0.4") 『Material』 We use vegetable tanned leather made by plant tanning, and select Ramino Waxed Thread from Japan, vegetable tanned leather ECO-FLO series for our dye, these are durable and extremely eco-friendly material. It will look even better after using for a long time. All the materials above are harmless to humans. In addition we have 3 choices by Lin Cable Waxed Linen Thread, Yellow, Pink and Duck. This high quality thread is made in France by Sajou and is exclusively used by high end/luxury craftsmen for Hermes, Louis Vuitton, etc. The Lin Cable thread is well known for its high strength, quality weave and beautiful rich colors. 『Customization』 No additional charge for dyeing, thread color and initials, maximum of 20 characters, big character and number only. check it out: https://www.pinkoi.com/product/1RJYeoPZ 『Maintenance Tips』 Plant tannins tanning will darken after exposed to the sun. After daily use, the leather tissue will tighten, also the surface will glow through time Leather might leave water marks if it touches water, please let the product dry naturally ASAP if it touches water. Place your leather products at a cool and well-ventilated place. Avoid direct sunlight and humid conditions to prevent mildew. Leather will get scratched like our skin, if you scratched your product, the mark won’t be that obvious through time, also will become a unique mark of your own! For daily maintenance, use dry fabric or brush to wipe out the dust, then apply leather polishing oil, draw a circle on the surface.