Multi-functional Accessory: ①Key ring: It can be used as a key ring to directly organize household keys. ②Small keychain accessory: Can be used as a link between the key ring and the key holder. Quick Release Key Ring: Unique quick opening design; ①Gently open from the side ②Put in the keys or small parts ③Gently pressing it upwards to close, which is very convenient (refer to the video).