Uses the concave side design of our original Shaper Bars with a new dual-runner design.One-piece design for light weight.Turns like a performance runner.Makes its own groove, so no darting on the trails.Eliminates dual-runner drag so not top-end loss.Self-cleaning design will not clog with snow, ice or rocks.Will not snag on obstacles.Extremely durable.Sold each.Some models require drilling extra holes in skisThis item fits the following vehicle applications:compatible with Ski-Doo Expedition 550F Sport 2012compatible with Ski-Doo Expedition LE 4-TEC 1200 2019compatible with Ski-Doo Expedition LE 4-TEC 1200 2011-2017compatible with Ski-Doo Expedition LE ACE 900 2019compatible with Ski-Doo Expedition LE ACE 900 2015-2017compatible with Ski-Doo Expedition LE E-TEC 600 HO 2019compatible with Ski-Doo Expedition LE E-TEC 600 HO 2011-2017compatible with Ski-Doo Expedition SE 4-TEC 1200 2019compatible with Ski-Doo Expedition SE 4-TEC 1200 2011-2017compatible with Ski-Doo Expedition SE ACE 900 2019compatible with Ski-Doo Expedition SE ACE 900 2015-2017compatible with Ski-Doo Expedition SE E-TEC 600 HO 2019compatible with Ski-Doo Expedition SE E-TEC 600 HO 2011-2017compatible with Ski-Doo Expedition Sport 550F 2019compatible with Ski-Doo Expedition Sport 550F 2013-2017compatible with Ski-Doo Expedition Sport 550F 2011compatible with Ski-Doo Expedition Sport 600 ACE 2019compatible with Ski-Doo Expedition Sport 600 ACE 2011-2016compatible with Ski-Doo Expedition Sport ACE 900 2019compatible with Ski-Doo Expedition Sport ACE 900 2014-2016compatible with Ski-Doo Expedition Xtreme E-TEC 800R 2019compatible with Ski-Doo Expedition Xtreme E-TEC 800R 2016-2017compatible with Ski-Doo Freeride E-TEC 800R 137 2012-2017compatible with Ski-Doo Freeride E-TEC 800R 146 2012-2017compatible with Ski-Doo Freeride E-TEC 800R 154 2012-2017c