This product comes in a 5' diameter in black

They feature an alignment tang for easy blade changes

Overall Length: 1-5/8"

STANDARD SERIES UNIT includes:

Graco GCI™ Series Gray Output Spacer, .100 in3 (1.64 cc) cabfeed_siphon This product comes in aFeatures The guesswork involved with dialing in injectors during initial installs and replacement service has been eliminated dramatically cutting the service time involved and preventing additional downtime to address over under greasing. Color coded output spacers dictate the right grease injector needed to always match the dispense output to the manufacturer's specs while eliminating the potential for inaccurate adjustments in the field. Color