Make sure youre not caught slipping in the mud when you screw in these trx sg long 11mm 15mm rugby studs from adidasevery player needs a good set of rugby studs on the bottom of their boots and these studs from adidas will do just the job made from aluminium this pack comes with 8 x 11mm for the front set of studs and 4 x 15mm for the back excellent as replacements for worn studs make sure youve always got plenty spare for the big matches by adding this 12 pack of adidas trx sg long rug