Attwood Marine LightArmor Plug-In Base Round 3 Pin Stainless Steel. Across the entire product line you get the intelligent engineering that LightArmor is known for. A Sure Fit. The new Light Armor Plug-In Light Bases have a threaded design feature that fits perfectly with the threaded locking collar now offered across the entire line of Attwood Pole Lights. This unique system ensures a tight and secure fit that prevents annoying rattling while underway or trailering Specifications for Attwood Marine LightArmor Plug-In Base: Manufacturer: Attwood Marine Gender: Unisex Age Group: Adults Application: General Fabric/Material: Stainless Steel Features of Attwood Marine LightArmor Plug-In Base Threaded Locking System for a secure fit Unique cover design Stays secure while underway or trailered Low-profile prevents water from pooling on top surface Package Contents: Attwood Marine LightArmor Plug-In Base Attwood Marine 910R3PSB-7: LightArmor Plug-In Base Round 3 Pin Stainless Steel