Pure Hockey Says: The Bauer Tuuk LightSpeed Edge Travel Kit is made of high-quality and durable materials that will help protect your steel no matter what kind of abuse it takes. This in turn protects your runners, keeping them sharp and nick-free. When the kit is opened, there is room to place 2 sets of runners securely inside (4 total runners, not included). Near the center of the case, there are drain vents for moisture from freshly-used steel.