Screws for adidas SG Studs Long silver FJ6355 Adidas spare studs are best during games taking place on soft grass surfaces. Model is compatible with adidas football boots from the X, Nemeziz and Predator lines. Construction of aluminum.  Technical data:· material: 100% aluminum· ; 12 plugs in package (4 plugs – 14 mm, 8 plug 11 mm)