Blue Fireball 1.25" Spacer Ring with 0.5" Extension

1.25" barrel spacer/extension tube. Has standard 1.25" filter threads (male on one side and female on the other), allowing you to securely set or vary the spacing between 1.25" components. Use these to extend the barrels of your 1.25" eyepieces. Precision machined from aluminum and anodized black. Provides 0.5" (12.7mm) of spacing.