1. SG (Steel Nail Football Shoes) Knowledge of Football Shoe Nails
SG: Soft Groud (Soft Ground), also known as steel nail soccer shoes, has longer spikes and is suitable for real grass with soft or very soft surfaces. Most players will use these spikes on rainy days.
2. Football Shoe Nail Knowledge FG (Long Nail Football Shoes)
FG: Firm Ground, FG sneakers are the best choice on natural grass fields. Designers have made specialized improvements to FG sneakers for natural grass fields, which has led most players to choose FG on such fields. Most professional players wear FG studs during games, which is also the most common. Usually, FG shoe studs have the longest length and are suitable for flat natural grass fields, as long as the field is not particularly wet.
3. HG (Short Nail Football Shoes) Knowledge of Football Shoe Nails
HG: Hard Ground, with shoe studs slightly shorter than FG, suitable for top or medium grass. The thickness of rubber and fine sand can vertically bury 2/3 of a one yuan coin, making it a suitable venue for amateur competitions.
4. AG (Artificial Grass Nail) Knowledge of Football Shoe Nails
AG: Artificial Ground (nail for human grass), the shoe nails are shorter than HG, usually about 1 centimeter, and the rubber used is softer than FG and HG. The number of shoe nails is also more than the above two types, suitable for artificial turf with rubber particles and fine sand thickness greater than 1 centimeter.
5. TF (Artificial Plastic Field) Knowledge of Football Shoe Nails
TF: Turf (artificial plastic field), also known as broken nail football shoes. Suitable for various types of artificial sports fields, with strong adaptability. The disadvantage is that the grip is slower than the above-mentioned shoe studs, but the pressure on the ankle and knee joints is minimal.
6. IC (Flat Bottom) Knowledge of Football Shoe Nails
IC: Indoor, suitable for polished indoor football fields and very poor quality outdoor grass.