Xray 21mm composite shock ball ends
Coming from Xray and made for the XB2 and XB4 line of buggies are 21mm composite shock ball ends. 4mm longer than the standard parts they offer increased suspension downtravel, something that can be beneficial especially on bumpy tracks. The ball ends come in sets of two and fit both the front and rear shock absorbers.
Source: Xray [teamxray.com]