Unlike nails embedded in shoe soles, today's Grass Spikes contain a thread which is screwed into spike wells. This makes them easily replaceable when the time comes, with replacement spikes.
The pointy, conical design of Grass Spikes mean that they have a sharp tip, which will penetrate the track surface to provide traction. Their longer length - 12mm as opposed to 6mm or 7mm spikes used on synthetic surfaces - penetrates the softer grass surface more deeply, to provide better grip.
Overtime, the tip of grass spikes will wear down from usage, blunting the spike. However, when used only on grass (and avoiding any hard surfaces, rocks etc) they will last longer than Pyramid Spikes or Christmas Tree Spikes do when used on harder synthetic tracks. Further, our spikes are made from quenched and tempered steel, which maximises their strength and durability. When taken care of, the spikes will last a long time before needing replacement.
We stock 12mm Grass Spikes, which is the maximum spike length allowable for use in Little Athletics. For powerful adult sprinters, we also have a 15mm Grass Spike available.
You can purchase 12mm Grass Spikes below for $9.50, with fast and free delivery. 15mm Grass Spikes are available in our Specialty Spikes section.