Great Material: Our light socket end caps are made of great quality plastic, which is strong and long-lasting, easy to screw in and out with knob design. Compatible Feature: The light bulb socket cover caps are only suitable for standard light bulb sockets (E26 sockets). Useful Tools: Our light socket safety cap plugs work well to protect your string light sockets against bad weather, and prevent water or dust from entering into light sockets. Also the safety of electricity. They can be widely used for parties. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Black Material:Plastic Package Contents: 16x light socket safety cap plugs Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Product Notes: Please allow a little manual errors.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please confirm acceptance before ordering. About Shipping: Please ensure your shipping informations are correct to avoid delivery issues. All orders are shipped within 3 days after payment. Delivery usually takes 8–12 days, The specific delivery time is depend on circumstances. If you have any questions during your purchase, feel free to contact us. We will respond you within 24 hours.