Well made, rugby specific studs for firm ground and 3G surfaces. My son uses these to replace his soft ground (aluminium) studs for training and playing on 3G. Take care to line up the stud key notches correctly to prevent the key slipping and damaging the stud.
Make sure you have the correct stud key for replacing the studs. A football boot stud key (hexagonal) won't work with these and will damage the studs.
Click and collect option from the local supermarket worked like a dream