Eisco labs 3.875" Diameter Closed ring with Boss head clamp.

• Outside diameter of ring 3.625" - Plated mild steel
• Ring and rod are integrated with boss head clamp
• Boss head clamps rods up to 5/8" in diameter with metal thumb screw
• Clamp from Boss head center line measures 5.875" to edge of closed ring.
• Plated mild steel with 5/16" diameter rod

Plated mild steel with 5/16" diameter stem, with open boss head fitted with thumb-screw to accept rods from 5/16" to 5/8" mm dia. Extension distance from boss head to ring is approx. 7/8", Outside diameter of ring 3 5/8" Clamp from Boss head center line measures 5/8" to edge of closed ring.