This keychain is made of 316L surgical grade stainless steel, ensuring it's strong and durable, and it won't break easily. It weighs 11 grams, with dimensions of 0.51' x 2' and a thickness of 1.3mm. Available in three colors: Stainless - SBB0139 - Stainless, Gold - SBB0139 - Gold, and Black - SBB0139 - Black.

To use this keychain, simply attach your keys to it. It's a great way to keep your keys organized and easy to find. When it comes to maintenance, you can clean it with a soft cloth and mild soap. Avoid using harsh chemicals or abrasive materials as they may damage the surface. Also, be careful not to drop it from a high place as even though it's durable, a strong impact could cause damage. And if you plan to engrave it, make sure to choose a professional engraver to get the best results.