Nltulngt nltpngtthe heelys split is a single wheel trainer with a unique black grey designnltpngtnltlingtstyle heelys wheeled skate trainersnltlingtnltulngtnltulngt nltlingtupper material syntheticnltlingtnltulngtnltulngt nltlingtsole material lightweight synthetic outsolenltlingtnltulngtnltulngt nltlingtfastening lace up nltlingtnltulngtnltulngt nltlingtheel wheeled flat heelnltlingtnltulngt