Opened, unused. The Bucklos Bicycle Chain Ring is a high-quality, unused chainring in a sleek black color. Two rings, one DOS 53-T-39T larger, one DOS 39-T smaller and Has 6 bolts and 6 screws. This component is designed specifically for cycling enthusiasts looking to upgrade their bicycle with a reliable and durable chainring. The Bucklos brand is known for producing top-notch cycling parts, making this chain ring a great choice for those seeking a dependable and efficient component for their bike.