OARS & SCULLS Concept 2 - Dreissigacker Racing Oars & Sculls Through a buying agreement with Concept 2, we are able to offer a limited selection of Dreissigacker sculls to our customers when purchasing a boat. For the best advice and service when purchasing oars and sculls we recommend dealing directly with Concept 2. Follow this link to view specifications for these products - Concept 2 - Dreissigacker Racing Oars & Sculls.