They are placed over top the skate blade to cover it. They protect the blades from cement, rocks, metal or wood which can damage the skate blade, resulting in uneven skating, due to rusty and dull blades.
The coverings are positioned above the skate blade to shield it. They safeguard the blades from concrete, stones, metal, or wood that could harm the skate blade, causing uneven skating because of rusty and dull blades.