The part illustrated here is primarily used on the Proctor "Miracle" Snipe spar. It can also be used on the following Snipe spars with little or no modifications:
Sidewinder
Sidewinder Jr.
Cobra II
Firestick
Mfg No. 500-801-01
Description Spreader End Assembly with Vernier Length Adjuster
Materials Aluminum with Plastic End Cap & Stainless Fasteners
Application / Comments Fully adjustable. Newly designed. 2 wire slots give a tight grip on either 2.5mm or 3mm wire, which enables spreader dihedral to be permanently locked into the spreader system.