top4cus Genuine Leather Replacement iwatch Band with Secure Metal Clasp Buckle for Apple Watch (Black B,42mm) Two-piece magnetic closure design, holes on the strap makes it easily adjust to find the right fit Fits 5.5"-6.7" (140-170mm) wrist, fit well for most wrist Updated version, we have already update the geniune leather to a better quality, thick and stable Partucular design for women, noble and elegant. Come with 12month warranty.if you think you have recieved a defective item, please contact us for a replacment, totally free also no need to return the old one.