These go-bar clamping rods are made from 1/4" fiberglass. These bars have very consistent clamping pressure, unlike other clamping methods. Each rod is 23.5" long by 1/4" in diameter, with rubber tips on each side. Ideally you'll need 20-24 pieces to clamp on the top or back of a guitar. 

Very strong and provide plenty of clamping pressure when needed.

Rods may vary in color but normally come in orange. 

One rubber tip is softer than the other. We use the softer end for any part that'll touch the guitar, while the harder end we use for placement in our go-bar system. 

Listing is for 12 fiberglass go bar rods.