Replacement kite stopper balls. Used on most kite bars and safety systems or where a stopper ball is needed on a line.
                        
                      
                      
                        Measures (approx.):
                      
                      
                        - Red stopper ball: diameter 25mm, top hole 4mm, bottom hole 12mm
                      
                      
                        - Black stopper ball: diameter 20mm, top hole 4mm, bottom hole 10mm