This is a set of 10 carabiners. Made of aluminum, they are very light and can be used for various purposes such as keychains. I think they are not suitable for serious mountain climbing. 【Size】 　Length: Approximately 5.5cm 　Width: Approximately 2.5cm 【Product Condition】 The product will be disinfected, wrapped in cushioning material, and shipped. Although it is new and unused, there are minor scratches, so it is listed as "slightly scratched or dirty."