The Bauer Tuuk LS5-G 3MM goal runner pair is for the vertexx edge goalie holder. Compatible with all Bauer goalie skate models from model year 2016 or newer, the LS5-G runners are the best skate blades available from Bauer for their new goalie holders. Todays goalies need a strong push and a sharp attack angle and the LS5-G runner provide both. The steel runners have been carbon coated to help keep an edge longer in between sharpenings and the increased height allows for a sharper attack angle for strong pushes across the crease.