K&S 83061 Round Aluminum Tube, 1/4" OD x 0.049" Wall x 12" Long, 1 Piece, Made in The USA

K&S Precision Metals 83062 Round Aluminum Tube, 5/16" OD x 0.049" Wall Thickness x 12" Length, 0.3125 in OD, 1 pc, Made in USA

K&S Precision Metals 83063 Round Aluminum Tube, 3/8" OD x 0.049" Wall Thickness x 12" Length, 0.375 in OD, 1 pc, Made in USA

K & S PRECISION METALS 8104 3/16x12 ALU Tube

K & S PRECISION METALS 8131 1/4 x 12 Round Brass Tube

K&S Precision Metals 83031 Round Aluminum Tube, 1/4" OD x 0.035" Wall Thickness x 12" Length, 0.25 in OD, 1 pc, Made in USA

K & S PRECISION METALS 8106 1/4x12 ALU Tube

Traxxas 5347 Rod Ends with Hollow Balls, Large (set of 12)

Glarks 18Pcs Brass Solid Round Rod Lathe Bar Stock Assorted for DIY Craft Tool, Diameter 2.5-8mm Length 100mm