SKU: 110886-1 IN STOCK XPS Ball Abutment Female housing for ball atachment for all platform diameters - Uses Xgate Silicone insert in replacement of the regular Oring - - Ball Diameter 2.3mm - - + $14.29 Add to cart Manufacturer # 16 Manufacturer XPS Model Ball Attachment Feature 4.3mm This item is not elegible for return or exchange.