Perfect slalom skating doesn't happen overnight, it takes time, practice and of course, the right equipment for the job! Seba Slalom or Freestyle Cones are widely regarded as the industry standard and the latest 'dual density' cones are weighted at the bottom to keep them firm ...Perfect slalom skating doesn't happen overnight, it takes time, practice and of course, the right equipment for the job! Seba Slalom or Freestyle Cones are widely regarded as the industry standard and the latest 'dual density' cones are weighted at the bottom to keep them firm, but remain softer at the top should you land on them. Packaged in a netted drawstring bag, the Slalom Cones are perfect for store displays or for chucking in your bag when you're off to practice your skills.