Your nike soft ground essentials kit contains the following items:

1) 1 x Nike Soft Ground Replacement Studs Set
13mm (8 studs) x 15mm (4 studs) set of studs
2) 1 x Nike Soft Ground Stud Wrench

Nike Screw In Metal Replacement SG Studs + Stud Wrench Set

Note the replacement studs are only available in a Silver 13mm x 15mm variant.