5mm diameter pin with quick - release ball fixing system. Usable length 12.5mmTotal length 26.5mmSold by the piece.5mm diameter pin with quick - release ball fixing system. Usable length 12.5mmTotal length 26.5mmSold individually. Available diameters: 4.75mm, 4.8mm, 5mm, 6mm and 6.5mm. Lengths available: 12.5mm, 21mm, 24.5mm, 15mm, 52mm, 40mm and 26mm Technical documents can be downloaded here