The Standard Spur comes in three end lengths starting at 15mm which is suitable for horses and ponies that are sensitive to spurs but still need that bit of extra leg.The 20mm is an intermediate length followed by 25mm & the 30mm which gives you all the oomph you need.

Available in lengths:

15mm Spur Length (Official Pony Length)
20mm Spur Length
25mm Spur Length
30mm Spur Length