Specifications:

BR-R600 Front and Rear

Dual Pivot Rim Caliper Brake

Reach: 57mm-48mm Long Reach 

Material: Aluminum and Steel

Color: Silver

Approximate Weight: 376g (pair)

NOS, new in box Shimano brake set in original box. May have some minor evidence of shelfwear from storage, though there appears to be nothing of note (see photos)