Boss Audio 4" MR4.3B Box Speakers - Black - 200W [MR4.3B] Wichard Double Action Safety Hooks Requires no special panel modification

Requires no special panel modification

10mm (3/8") internal clearance

Spinlock XXC Side Mounted Single Power Clutch CTiC 5/16" to 1/2"

3/16"(5mm) Hole punched in both ends

Boss Audio 4" MR4.3B Box Speakers - Black - 200W [MR4.3B] Wichard Double Action Safety Hooks Requires no special panel modification4" MR4. 3B Box Speakers White 200W Whether you are at a boat party or spending a day out on the lake, you can enjoy the premium quality sound of the BOSS Audio 3 Way Marine Enclosed Speaker System. This enclosed marine speaker system features a tweeter and 1. 5" polypropylene cone. Swivel brackets are included for a smooth, simple installation process. The versatile speakers can also be installed indoors or on the patio, giving you plenty of options