High quality durable construction will not corrode due to the effects of salt water. Includes viewfinder and lanyard. Visibility is 10 miles. 3" x 4", plastic with lanyard.

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov