BLK BOXSKU: 16-1204
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Leg Extension / Leg Curl Machine

Regular price £3,500.00

The Leg Extension/Prone Leg Curl delivers an efficient lower-body workout with dual functionality, quick weight adjustments, and ergonomic, padded support for comfort and proper form.

Specifications

Length

1.4m

Width

0.9m

Height

1.5m

Weight

220kg

Weight Stack

130kg

Delivery

We ship our orders via Parcel or Pallet depending on the size of your order and shipping fees will be calculated at checkout.

To track your order click here for orders placed online; Track an Online Order and here for orders placed via our Sales team; Track an Offline Order.

We understand at times due to size, colour or type some items might not be the right fit for you. We are happy to accept a returned item within 30 days from the date of you receiving the item for a refund or exchange.

To start a return click here; BLK BOX Returns

Finance Options

3 interest-free payments of £1,166.66
4 interest-free payments of £875.00
4 payments of £875.00 with PayPal
  • Durable construction Durable construction
  • Maximise Potential Maximise Potential
  • Functional Design Functional Design
  • Premium finish Premium finish
  • Free Shipping

    on all orders over £500

  • Interest-Free Finance Options

    Available on all orders

  • Lifetime Structural Warranty

    on all BLK BOX Equipment

  • Over 300,000 Clients

    Including 90% of Premier League teams

Leg Extension/Prone Leg Curl - BLK BOX

The Details

The Leg Extension Machine delivers two essential lower-body exercises in one compact, high-performance unit. Designed for both commercial and home gyms, it enables smooth transitions between leg extensions and prone leg curls, helping users build strength and stability through controlled, isolated movements.

Built with a 130kg weight stack and a durable steel frame, it provides consistent resistance and long-lasting reliability. The ergonomic design promotes correct form, while dense foam padding with a wipe-clean vinyl cover ensures comfort and easy maintenance during high-use training.

Featuring adjustable 4-pin positioning and customisable seat height (56.5cm–67.5cm for curls, 67.5cm flat for extensions), this machine adapts to users of all sizes for a comfortable, efficient, and secure training experience.

Install guides

Features of the Leg Extension / Leg Curl Machine

  • Customisable Configurations

    Designed with a modular frame and compatible with a range of attachments, this machine can be configured to suit different exercises and user needs.

  • Dual Function Design

    Combines leg extensions and prone leg curls in one compact machine, allowing users to train both quadriceps and hamstrings with quick, simple adjustments.

  • Durable Construction

    Built with high-quality materials such as laser-cut steel and precision components, ensuring durability and stability under intense use.

Frequently Asked Questions

What exercises can I do with this machine?

It allows you to perform both leg extensions and prone leg curls, targeting the quadriceps, hamstrings, and supporting muscles.

Is it easy to adjust?

Yes, the pin-loaded system allows for quick and simple weight changes and exercise adjustments.

How do I maintain the machine?

The vinyl-covered pads can be easily wiped down for cleaning and hygiene.