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The Egyptians ahd rollers, or long cylinders, that they would roll the sandstone blocks. they also used many slaves.
brush rollers, foam roller, velcro rollers
the log rollers are lumberjacks
Depending the quality you want on ab roller will give you different prices. If retail stores are carrying them at a expensive price then try to search any online large retailer for ab rollers. You should get large variety of ab rollers at different prices.
Steam rollers haven't been used for over 75 years. Most rollers now are driven by diesel engines.
regular rollers
Dutchland Rollers was created in 2005.
High Rollers was created in 1987.
Yogos Rollers was created in 2005.
Oly Rollers was created in 2006.
Rocktown Rollers was created in 2008.
roller skates ought to be called 'patins en ligne' in French, but the usual way is to call them skates / rollers / rollers skates. Hence roller skating is most often 'faire du roller' instead of 'patiner', which is outdated.