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Model: 8400422

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Product Features

A photo of the Expander in use

Expander is designed for building upper body muscle

A durable and effective strength training accessory. Perfect for getting a full upper body workout. 5 adjustment levels for all your exercises.


A whole host of exercises to work your upper body.


Adjust the number of elastics to vary the intensity of your workouts.

Easy to transport

An accessory you can take with you anywhere.

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Product Customer Reviews

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157 Reviews
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Elasticity didn't last

I'm not sure if I over-stretched the product but after attaching 3 connections and using it for about a week, the middle tubing can be seen sagging, indicating its looseness. But other than that, the product does what it says.

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Hello Billy!

Thank you for taking the time to drop us a review! We are glad you enjoyed your buy despite the minor hiccups.

We are sorry that our product quality did not met your expectations! Just drop by to any of our stores for a 1-to-1 exchange should you feel that the middle tubing is not working well. We will always, and would want to, have your sports practice a pleasant one!

However, if you feel like you can make do with the situation, here are a few exercises that you can do with our Expander! 

Hope to see you in our stores soon.

Keep hustlin'
Sports Leader Pilates, Soft Gym
Expander_adjustable tension bands

Very Handy, less strain than free weights, adjustable tension/weight

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Very Versatile and handy

from basic to advance movements, anyone can benefit from this equipment, excellent quality as well

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qulity and design are good

It's good for practicing your strength, but a lot of people said this action is not good for muscle building. You would not see it in the gym.

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Low quality product

It literally lasted 5 mins before the rubber bands started breaking loose at the connection. Would have to return it, not recommended.

Easy loose

The product cannot bear the tension. Just several pulling exercise, the rubber bands will loose out. I used two rubber bands only at one time. All the five rubber bands were loosed from time to time after not more than 5 pulling exercises at each two rubber bands pulling exercise. The tension design was totally wrong. How can I use it !!!!

Empuñadura estrecha

Hola buenas! Lo he utilizado por primera vez y me ha parecido buena experiencia haberla adquirido. Sus características y funcionalidad cumplen con las intenciones que desea quien comienza de forma básica. Lo que sí me parece escasa es la empuñadura cuando es utilizada con el píe. De hecho si te despistas y escapa la empuñadura de la punta del píe, igual te saltan los piños.


Las primeras sensaciones so brutales, con dos gomas me da para mantener los entrenamientos, llevo entrenando 15 años en el gym, muevo kgs aceptables y como alternativa al gym, he de decir que salgo algunos ejercicios muy específicos, puedes trabajar prácticamente todo, las gomas de momento genial, vuelven a su ser y no se deforman


Conforme me llegó, no hice ni una serie y se partió el enganche de las gomas y por casi me revienta la cara

Encantado con ellos

Estoy muy contento con ellos, porque puedo hacer algo de ejercicio en casa.

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Para entrenar en casa

Perfectos para entrenar

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Buena compra

Justo lo que necesitaba

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Calidad precio aceptable

Las asas son incómodas . En general no es muy robosto. El precio no tiene competencia.

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Es bueno pero se queda corto

Un poco corto para realizar según qué ejercicios. Debería traer tiras elásticas de 2 medidas. Está muy bien que puedas configurar diferentes tensiones.

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Additional Product Information



  • 100% Rubber - Synthetic


  • 100% Polypropylene

Inner fabric

  • 100% Polypropylene

Did you know?

Unlike dumbbells, elastic bands give you variable, gradual resistance. This lets you work on your strength, speed and power while reducing the stress you place on your joints.

How to use your product

This product is adaptable: You can choose the resistance to suit your level or the exercise. If you are a beginner, the 5 elastics may be too difficult to pull to complete the movement perfectly. Start with 1 or 2 bands, then increase gradually. Go to to check out all the available exercises with your Expander:

This product has been improved thanks to your feedback!

Thanks to your feedback, our design teams have worked hard to improve the product. So, for the safest practice and better comfort, we have reworked the handle and the elastic attachment system.



Superior quality. Unbeatable prices.

For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.

Decathlon makes the difference
  1. product-research

    Research and development

    delivers high-quality cost-effective products

  2. State-of-the-art production processes

    minimize manufacturing costs

  3. Optimized supply chain

    reduces retail prices

  4. laptop-checkout

    Minimal retail footprint

    lowers overhead and indirect costs


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