They have 22mm threads so are standard fitting for most retro & modern chain sets. Polished aluminium finish and weigh just 4g each. You use a 5mm allen key for fitting.
Pair x2 of Silver Aluminium Crank Arm Dust Caps Chain Set Covers
New Old Stock Pair x2 of Replacement Dropout Alignment Adjuster Screw Thumb Nuts
Ritchey Girder Pro Black NOS Rims - 36h 26" Clincher Classic 1990s Pair (x2)
Araya Silver NOS Rims - 32h 700c Clincher Classic 1990s Pair (x2) - Wheel Bike
Sprint NOS Bottle Cages - White Classic 1990s Pair (x2) Water Holders Carriers
SKF 61902 / 6902 2RS1 MTF9 bike specific hub bearings (PAIR x2) 15x28x7