Metric Aluminum Spacer 11.11 OD x 8.1 ID x Many Lengths Round by Metal Spacers Online (1.58mm Length, 10): Amazon.com: Industrial & Scientific
Aluminum Spacer 3/4" OD x 3/8" ID x Many Lengths Round by Metal Spacers Online (1" Length, 2): Amazon.com: Industrial & Scientific
Amazon.com : Bicycle Headset Spacer,1-1/8 inch Aluminium Alloy Bike Stem Headset Spacers Fork Washer Fit for MTB BMX Mountain Bike Road Bikes 1 x 5mm, 4 x 10mm : Sports & Outdoors
uxcell 5 Pcs M3 x 60mm Round Aluminum Column Alloy Standoff Spacer Stud Fastener for Quadcopter Red - - Amazon.com
Amazon.com: PLATT Bike Headset Spacer 7PCS Aluminium Alloy MTB Road Bike Stem Headset Spacer Fit 1 1/8-Inch Stem 2/3/5 /10mm (Black) (Headset Spacer with Top Cap) : Sports & Outdoors
Amazon.com: WidgetCo 1/4" x 1/4" Aluminum Spacer : Tools & Home Improvement
Amazon.com: KIMISS Hood Spacer Riser,Car Aluminum Alloy Engine Hood Ventilation Spacer Riser Fit for 6mm Motor (Aluminium Alloy)(Blue) : Automotive