The Black Diamond Stopper Set Classic 5-11 is an essential tool for any avid climber. This great set contains seven sizes and is crafted from solid aluminum to ensure long-lasting durability. The set has a unique asymmetrical design, providing improved stability and a secure fit when placed in cracks or fissures. The smooth edges make placement easier than ever while the stop collar ensures the stopper won't slide, ensuring the stability you need to complete any climb. With this set, no doubt climbers can place protection with confidence. They will provide the security and peace of mind you need when scaling new routes or tackling old favorites. Don't risk your safety, get the Black Diamond Stopper Set - the perfect blend of reliability and affordability.