CAMPAGNOLO chain rivet tool for 11-speed chains - UT-CN300.
ATTENTION!
All operations to close and open the Campagnolo 11S chains must only be carried out using the Campagnolo® UT-CN300 tool. The use of other tools may cause damage to the chain.
The slider of the Campagnolo® UT-CN300 tool is equipped with a pin with a conical tip. If this tip is worn or damaged, you should replace it with the Campagnolo® UT-CN301 replacement tip available as a spare part. If the sprocket is not replaced in time, it may damage the drive chain.
The use of sprockets and chainrings other than "Campagnolo®", may damage the drive chain.
An incorrectly fitted chain can suddenly break when using the bicycle and this could cause accidents resulting in physical or even life-threatening injuries. If you have any doubts about your ability you should consult a specialist bicycle mechanic.
Instructions can be found at: http://www.campagnolo.com/repository/documenti/de/7225363- tool_UT-CN300.pdf