"The Millennium Marine Telescoping Double Graph Mount offers outstanding adjustability. The base can rotate 180, and the riser tilts 180. The mount also offers telescoping capability up to 25.5"" in height, making it perfect for forward-facing sonar applications. The Millennium Graph mount has a versatile mounting plate that accommodates most fish finders. Anodized aluminum with stainless steel hardware ensures marine-grade durability. Mfrs. 2-year limited warranty.Manufacturer model #: MM-004-BLK. Base rotation of 180 Riser tilts 180 Monitor mount adjust 350 Telescopic riser adjusts 18""25.5"" high Mounting plate is designed to fit most monitors Anodized aluminum with stainless steel hardware"