Training Equipment › Extra Link 3.00MM Image 1 of 2 Image 2 of 2 Extra Link 3.00MM from $6.25 sold out Extra Herm Sprenger 3.00MM link. Sold individually or in packs of 3. Extra Link 2.25: Select Extra Link 2.25 Single 3 Pack Sold Out Added! Extra Herm Sprenger 3.00MM link. Sold individually or in packs of 3.