A good example of a Shimano 105 FC-1055 Biopace double chainset.

Both rings have very visible little wear.

52/42t biopace rings

170mm arms

Both square taper fittings and 9/16” pedal threads are good.

Extractor threads are good.

Nos generic dust caps fitted.

Some bubbling and heel rub to the lower ends of the arms but overall condition is good as per photos.

Thanks for looking .