Ground Control HD and FLT4 Aluminum H Blocks.

Replacement ALUMINUM h-blocks for use on Ground Control Aluminum HD Frames. Comes in one size, but many colors, and will fit both 60mm and 72mm HD frames. Nothing sounds better than aluminum grinding on metal, cement or whatever... Slides great and sounds like mayhem!

• Price is for 2 H Blocks
• Fits both 60mm and 72mm Ground Control Aluminum HD Frames
• Two Colors to Choose from when Available