Classic gold-tone smooth finish top shells offer a stylish appearance suitable for business or casual wear. All stainless steel construction coated with a gold PVD plating provides high strength & resistance against water & sweat. A large expansion range of up to 5" inches will allow you to easily put on and take off your watch without having to struggle with a buckle. Twist-O-Flex’s bottom box and side edge design greatly reduces any hair pulling or pinching. Easy to install with included spring bar pins that slip into your watch lugs. Straight spring loaded end tips will automatically adjust to any lug width ranging from 16mm to 22mm. The width of the band is 15mm so for best look, we recommend this band on a watch 16mm, 17mm or 18mm. Sizing instructions are included with each watchband to help customize to fit your wrist. 100% SATISFACTION GUARANTEE: We are sure that you are going to love your new Twist-O-Flex expansion band, but if for some reason you are not satisfied within 30 days of purchase, we will send you your choice of a 100% refund or replacement. Additionally, you will also receive our 1 year manufacturer's warranty. Please feel free to contact us with any issues that you may have and we will make it right. Customer satisfaction is our #1 priority.