Effortless Installation Universal Fit Fits all shoe sizes KidsAdults in seconds No tools required Dazzling Light Trails for Skate GrindsUpgrade your streetpark skating with instant spark effects Our Flint Shoe Cover Spark Generators create brilliant light trails during grinds, slides, and braking. Universal fit works with MultiUse Spark Insoles for All Skill LevelsDesigned for beginners to pros, these flint spark stones transform skating, cycling, and even dance moves into a light show. Highfriction inserts guarantee longer spark duration and brighter flashes vs. generic brands. Ideal for BMX, skateboarding, or motorcycle stunts Upgraded for Brighter Longer Sparks Compared With The Old Product, Both The Flint Stone And The Shoe Cover Have Been Redesigned For A Stronger Structure Brighter brightness And Longer Friction Time The Ultimate Gift for Action Sports FansA unique present for skateboarders, cyclists, motorcyclists, and dancers Frustrationfree packaging ready for gifting. Surprise them with professionalgrade sparks great for birthdays, holidays, or competition gear upgrades.