Ball Grapper Pick Up Tool Hobby Tool Gemstone Pick Up Tool Precision Parts Gripper for Electronic Parts Watch Glasses Adjustment Tool Diamond Pickup Tool [Retractable Size] Largest Stone Size is about 13mm in diameter. Lightweight Body: The metal part is made of aluminum alloy, and the overall weight is very light. The handle is made with an anti-slip structure, making it easy to use and prevent slipping. [How to use] Ball grappler when you press the tip of the tip, the wire with the hook extends 4 wires, and the wire holds the jewelry firmly in place. 【EFFECTIVE】Ball grapper is very effective for picking up and moving small stones easily. It is easy to handle and can be done quickly and accurately. Wide range of uses: Customers can easily use this product with a professional or amateur. Great for repairing watches, making jewelry, installing IC chips, and many other occasions.