10" International 4A Center Fin – Bright Green Pro Glass Classic Control for Longboards

Depth 10” Base 7.2”

The 10" International 4A Center Fin is a time-tested longboard fin template known for its balanced pivot, stability, and predictable hold. With a wide base and upright profile, the 4A shape excels in traditional single-fin longboards where control, trim, and smooth directional changes matter most.

Constructed from durable Pro Glass, this fin delivers a consistent flex pattern that feels smooth underfoot and dependable through turns. The bright green colour adds a bold visual hit without compromising classic performance, making it equally at home in clean point surf or everyday beach break conditions.

Key Features

• Classic 4A longboard center fin template

• 10" depth for stability, trim, and controlled pivot

• Pro Glass construction for strength and reliable flex

• Upright profile with wide base for predictable hold

• Eye-catching bright green colour

• Designed for single-fin longboard setups

Ideal For

• Traditional and performance longboards

• Single-fin configurations

• Surfers seeking smooth trim and controlled turning

• Nose riding stability without excessive drag

• Clean points, reefs, and everyday beach breaks

Why Choose This Fin

The 4A template is trusted worldwide for its neutral, confidence-inspiring feel. At 10", it provides the right balance of hold and manoeuvrability, while Pro Glass construction ensures durability and long-term consistency. If you want a classic center fin that works across conditions — with a bit of visual flair — this fin delivers.

Compatibility

• Compatible with standard sliding center fin boxes

• Uses a traditional screw and plate fitting

• Fin screw and plate included

Frequently Asked Questions

Will this fin fit my longboard?
Yes. This fin fits all longboards with a standard sliding center fin box.

What does the 4A template feel like in the water?
The 4A offers a balanced ride with strong hold, smooth pivot turns, and dependable trim — ideal for classic longboarding.

Is Pro Glass flexible or stiff?
Pro Glass provides a moderate, predictable flex, offering control and smooth energy release through turns.

This 10" International 4A Center Fin – Bright Green Pro Glass is designed for traditional longboard trim, stability, and controlled pivot, featuring durable Pro Glass construction to deliver predictable flex, hold, and smooth directional changes. Ideal for single-fin longboards and classic outlines, it offers balanced turning control and dependable glide without unnecessary complexity. Compatible with standard sliding center fin boxes, it’s a reliable choice for surfers who value function, feel, and long-term performance.

We include

Free Delivery: of all fins, wetsuits and accessories everywhere in Australia.

Tracking: Quick & easy online tracking on all fins and wetsuits. 

Peace of Mind: All our fins and wetsuits are insured if lost in transit.

Prompt Australian Dispatch: All items are sent from stock held in Sydney on the same or next business day.

Returns: 30-day, no questions asked returns, for unused full price items.

No More to Pay: No surcharges added at the checkout.

Enjoy faster Express Shipping for just $10 per order at checkout.