Ultra violet , single-nail wire staples constructed of high-grade, injection molded polyethylene saddles and zinc-plated nails. The smooth saddles hold the wire securely while preventing damage. to rust, rot, and deterioration. Suitable for indoor and outdoor use. Ideal for securing speaker, telephone, bell, and other low voltage wires. WARNING: This product can expose you to chemicals including DEHP which is known to the state of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov -