Amazon.com : RollerWave Slide Block for Roller Skates - Easy Mounting to Quad Roller Skates for Sliding & Grinding on Rails, Coping, Curbs and More. for Outdoor Skating (Small) : Sports & Outdoors
SLIDE // GRIND Block ✨ For Quads ✨D.I.Y. - YouTube
Disco Blox Grind Blocks for Roller Skates - Lucky Skates – Lucky Skates Pty Ltd