The SkiErg comes ready to wall mount, or has two floor stand options. The wide floor stand accommodates most wheel chairs.

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The BikeErg brings the accuracy and quality of the RowErg and SkiErg to cycling, giving you a perfect ride every time. Whatever sort of indoor cycling workout you're after, whether you're looking to get fit or gain an edge for your next race, the Concept2 BikeErg is the perfect machine for you.

We want you to be completely satisfied with your purchase on Science Outside. If for any reason you are not satisfied, items can be returned within 30 days of delivery for a full refund or exchange. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

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We made our first rowing machine in 1981. The Concept2 RowErg has since gone on to be used by everyone, from Olympians to commercial gyms to home users and more. See why the Concept2 RowErg still sets the Gold Standard.

A Fresnel lens is a compact type of lens originally used in lighthouses. The construction of these lenses allows for a large aperture and a short focal length without the mass that would normally be required. This large Fresnel lens is 2mm thick, 8" by 10" in size, and has 3x magnification, making it ideal for various optical experiments and educational purposes such as the study of magnification properties, light focusing and solar energy, exploring focal length, investigating lens aberrations, and demonstrating the concept of optical path length and wavefronts.

Since 1976, we’ve been making world-leading oars that set the mark for innovation and performance. At the last Olympics, 97% of rowing medals were won using Concept2.

The mixed 60-70 y.o. team from @holyoke.rows rowed 1 million meters in 88 hours, 29 minutes and 26.3 seconds to raise money for the Holyoke Rows Youth Program.

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We’ve been making world class products since 1976. When you choose Concept2, you invest in a legacy of excellence. Our products will help you get fit, stay fit, win your race, or train for your primary sport.

For items that are damaged, defective, or incorrect upon delivery, please contact us immediately for assistance. We will work with you to arrange a return, replacement, or refund as needed.

From first responders to basement warriors, we love our community. @feuerwehr.kiebitzreihe training on all 3 ergs in preparation for the @shnetzcup.

The SkiErg offers a total body exercise that builds strength and endurance using the motions of cross-country skiing. Even if you've never put on a pair of skis, the SkiErg is the perfect tool to help you reap the benefits of a low impact, high calorie burning workout, suitable for all ages and abilities.

Thank you for shopping with Science Outside. If you have any further questions or need assistance, please don't hesitate to contact us.

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To initiate a return, please contact our customer service team at scienceoutside2020@gmail.com to receive a return authorization. Once your return is received and inspected, we will issue a refund to your original payment method or process an exchange for the item(s) returned. Please note that shipping costs are non-refundable and return shipping fees are the responsibility of the customer, unless the return is due to an error on our part.

Our oars are custom-built and engineered for speed. With every oar, we commit to delivering our best effort, so you can deliver yours. Learn more and see why our oars are the preferred choice of top athletes around the world.

ErgData is our free app that connects you to the Concept2 community. Erg with others on the Real Time Loop, take part in the Workout of the Day, share your workouts and more.

Concept2 is proud to be a partner of the @thepocockfdn. Through scholarships and grants the ErgEd program promotes an introduction to the sport of rowing to communities that may not otherwise have access to it.