Durable construction: Made of durable materials, these clips deliver sturdy, longlasting performance. Simple and fast connection: Designed for quick and reliable attachment. They feature a large size, light weight, and teeth to provide reliable and secure contact. Thick and stretchy body with a reinforced contact: The body is thick and stretchy to provide flexibility and a tight grip. The suction nozzle with teeth enhances contact for a stable connection. Copperplated with resistance: The clips are copperplated with resistance, making them suitable for various electrical engineering and voltage testing applications. Use scenarios Voltage testing and circuit debugging in labs, workshops, or onsite setups. Prototyping and bench work for electronics projects and experiments. Educational demonstrations and hobby electronics activities.