Inline skates are a type of roller skate used for inline
skating. Unlike quad skates, which have two front and two rear
wheels, inline skates typically have two to five wheels arranged
in a single line. Some, especially those for recreation, have a
rubber "stop" or "brake" block attached to the rear of one or
occasionally both of the skates so that the skater can slow down
or stop by leaning back on the foot with the brake skate.
The modern style of inline skates was developed as a substitute
for ice skates, for use by a Russian athlete training on solid
ground for Olympic long track speed skating events. Life
magazine published a photo of American skater Eric Heiden,
training for the 1980 Olympics, using such skates on a Wisconsin
During the late 1980s and early 1990s,
Rollerblade, Inc., a company founded by Scott and Brennan Olson
in Minneapolis, Minnesota, widely promoted inline skating
through the registered trademark Rollerblade.