If you are looking to increase the versatility of your soft ground boots and potentially avoid needing two pairs (one soft ground and one firm ground) you need plastic studs.
The plastic material absorbs impact better than more unforgiving metal studs and the shorter lengths mean you won't skate on the surface of a firm natural pitch. They also have the benefit of being legal for artificial grass/turf pitches so you won't be surprised on game day!
While both stud lengths will work well on either natural or artificial surfaces, we generally recommend 10mm for use on firm/hard ground natural surfaces. These fields tend to be more "baked" and penetrating the surface is much harder. Longer studs actually have less traction in these situations. So the shorter length plastic will absorb force well and provide the right amount of length for maximum traction.
For artificial surfaces, we generally recommend the 13mm plastic studs. These fields are easy to penetrate so this longer stud will give maximum traction while still being artificial grass legal.
M5 simply refers to the thickness of the screw portion of the stud. The M5 is slightly thinner than the more recent M6 and is often used on "forward" boots.
Each kit comes with (20) total studs in your selected size along with a stud wrench. This will let you fully replace both boots and still have (4) spare studs as needed.
Here is a list of some compatible boot types:
adidas Kakari Series
Gilbert Sidestep Series (8 stud model)
We provide FREE return labels for customers in the U.S. Items that are unwashed, unworn, and unused may be easily returned by mail within 30 days of delivery.