Quote Originally Posted by gssixgun View Post
approx 1/16 - 5/64 ID and 1/8 - 3/16 OD
I have .080 id x .125 od in a rigid clear tube and several colors (black,red, translucent blue, red, green, orange, yellow, purple) in semi-rigid tube that is slightly larger id. The pieces are 4 to 5 inches long.

I also have some bigger and some smaller, but I think this is closest to the right size.