This is a Kwik Grip E/Z Connector set by Dubro. EZ Connectors link a pushrod to a servo arm allowing it to pivot for less bind in control surfaces. FEATURES: Works on 2-56 and smaller wire (.078") Permanent or snap on mounting push nuts both included. INCLUDES: Two brass EZ Connectors Two plastic snap nuts. Two metal snap nuts. Two 2.5x3.5mm slotted head screws. REQUIRES: Assembly onto linkages Kwik grip E/Z connector wrench. DUBQ1867. SPECS: Length of brass connector: 10mm (.395") Diameter of brass connector: 5.5mm (.217") COMMENTS: These differ from the standard E/Z connectors DUBQ1860 in that they have a hex shape for easy tightening. Use in conjunction with DUBQ1867 for quick, easy grip installation. pjm 4/10/02 ir/kh