Wolturnus rigid wheelchairs
http://wolturnus.dk/en/products/rigid-wheelchairs/

Team Twin Edition - twin brothers run together
In 2013, twin brothers Steen and Peder Mondrup contacted Wolturnus with a very unusual assignment: they asked Wolturnus to design a special wheelchair that would let them run together. That was the start of a unique partnership. The result: Wolturnus now manufactures a specially-designed Team Twin Edition racing wheelchair that is available both in Denmark and abroad.
As a result of oxygen deprivation at birth, Peder has been wheelchair-dependent his whole life. That has never stopped him doing sports with his twin. Competing together as Team Tvilling (Team Twin), the brothers have achieved many impressive results including and Ironman.