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RollerKick™ - The original retractable roller skates
World's Fastest Shoes Promise to Increase Walking Speed by 250%
Moonwalkers 'World's Fastest Shoes' Lets You Walk as Fast as Running – Footwear News
The world's fastest shoes: Moonwalkers - electric-powered roller skates that increase walking speed by 250% - are available on Kickstarter | gagadget.com