A scaffolding top cup, also known as a top cap or top cup coupler, is a key component in scaffolding systems, particularly in cuplock or ringlock scaffolding. This component is designed to securely hold horizontal ledgers or transoms onto the vertical standards or uprights, forming the main framework of the scaffold. Top cups are typically made of durable materials like steel and feature a locking mechanism, often with a rosette or wedging design, that firmly clamps onto the tubes. This ensures a stable and secure connection, preventing movement or disassembly of the scaffold during construction or maintenance work. Scaffolding top cups play a pivotal role in the safety and structural integrity of scaffolding structures, offering a dependable and efficient means of assembling scaffolding systems quickly and securely.