Kooer Jewelry: Your Reliable Choice of Fashion Jewelry High average review rating of jewelry collection. All handmade jewelry, well polished and one by one quality controlled. Affordable prices and luxury appearance. Thick strengthening clasps, sturdy and durable, also convenient to use, perfect for daily outfits. This cufflink set uses the excellent electroplate technique which guarantees long-time color retention. It is perfect to keep as a daily jewelry. Long time Warranty At Kooer Jewelry, we believe in our products. That's why we back them all with an 60-day warranty and provide friendly, easy-to-reach support.