The SUB x JAG 316 Stainless Head is part of a modular buzz bar system that lets you build your own setup from interchangeable components. Choose from eight bar lengths in either marine grade 316 stainless steel or hard anodised aluminium Prolite Black. Each bar comes supplied with a 3mm Allen key and will accommodate any of the three heads in the range, simply bolting on. To create a full buzz bar you need to choose one bar and three heads. Mix and match between Prolite Black or 316 Stainless; stainless bars with black heads is a popular combination, offering a crisp look while saving some weight. Widths are flexible, as any bar in the range can become a two or three rod setup. The 1 inch increment difference between front and rear gives a gentle splay. Suggested pairings are listed below. - 2 rod pairs: 3 and 4 inch (super tight), 4 and 5 inch (tight), 5 and 6 inch (standard), 6 and 7 inch (wide) - 3 rod pairs: 6 and 7 inch (super tight), 7 and 9 inch (tight), 9 and 11 inch (standard), 11 and 13 inch (wide) The range includes several head types to complete the system: - 2 Rod Middle Insert – centre for a 2 rod set up - Fixed Head – a simple fixed head for buzzer and rear rest attachment - Adjustable Head – a head with locking nut for easy alignment of buzzer using JAG Lock-It tool - Thread Protectors – a neat way to protect and cover the threads on end heads A typical 2 rod setup would include a 5 inch bar, a 6 inch bar, 4 fixed heads, 2 x 2 rod middle inserts, and 4 thread protectors. A typical 3 rod setup would include a 9 inch bar, an 11 inch bar, 6 fixed heads, and 4 thread protectors. To complete the system you will need to purchase three heads for each bar: either three heads for a three rod setup, or two heads and a middle insert for a two rod setup.