Welcome to our store! [Compatible with 1/2-inch standard electric/pneumatic wrenches (not compatible with other wrenches), perfect for replacing friction rings for sockets.] [10-piece value pack] Includes 10 heavy-duty 1/2-inch lock rings + O-rings + 1 mounting anvil, durable and requires minimal refilling.] [Multiple uses] Perfect for car repairs, industrial maintenance, or construction sites. Securely locks sockets even under heavy pressure, improving work efficiency.] [30-second quick installation] Insert the lock ring into the tool slot, tilt the anvil at 45° and press vertically – no professional skills required. Minimize downtime immediately.] Please note: Small color variations or deviations may occur between the actual product and the packaging, but this does not affect use. Thank you for your understanding! Color: As shown in the picture. Material: Metal. Package contents: 10 x 1/2-inch O-ring lock rings + anvil mounting tool. This package only contains the above content; other products are not included. Note: Light reflections and different monitors may cause the color of the item in the picture to differ slightly from the actual product. The allowed measurement error is +/- 1-3 cm. Your satisfaction is our highest priority. We will wholeheartedly provide you with the best possible service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will provide you with the best solution!