Solid 999 fine silver hollow tubes pick size. foot long dead soft 

2.31 mm outer 1.80 inner .25 wall

3.25 mm outer 2.75 inner .25 wall

5.10 mm outer 4.35 inner .38 wall

6.35 mm outer 5.35 inner .50 wall

9.35 mm outer 8.35 inner .50 wall  

12.7 mm outer 11.7 inner .50 wall