Slide and stall with ease!Add these to your roller skates to give them the functionality to grind along the coping. These little Blocks (which come as a pair) have a lot of similarities to the shape of inline grind blocks, also known as "H blocks". Using these will give you extra stability and allow you to connect with the park even for your first steps at the skate park, dropping in. Make sure you use the size chart below to get the right Blocks for your plates. If you're unsure feel free to call or email us if we can help you ascertain your plate size! Made for the Bont Tracer or Prodigy plate and may fit other 20-degree plates and other plates with bar modification but will void your warranty. Please note; not all sizes are held in store at any one time. Please check the shop by either phoning 03 9555 7988, emailing [email protected] or instant messaging for shop stock levels if planning a visit to the store. If showing as out of stock, please contact the shop by either phoning 03 9555 7988, emailing [email protected] or instant messaging to see if it's in the next order, and can be kept aside for you, or it can be specially ordered in.