The Roll-Line AMBRA HOCKEY SMALL is the BEST Toe Stop for those “Get Up and Run” Starts and for ALL Derby Skaters . The AMBRA HOCKEY SMALL Toe Stops are shaped just like the Hockey Stops for those incredibly fast starts and stops, but are just a little smaller for DERBY Skaters and have all of the GREAT characteristics needed in Toe Stops, Abrasion, Grip, and Resiliency, all 5 Star performance. The Roll-Line AMBRA HOCKEY SMALL Natural Toe Stops are available in Metric and US Threads (Only available in the United States). All Roll-Line Frames have Metric Toe Stop Threads. ATLAS, Snyder, Riedell, Pacer, and Sure Grip use US Threads.