Product arrived in generic plastic bag in perfect condition. Right color and model, all bolts and adapters included. Brake pads are fixed with bolt (not clip like some cheap models). The bolts to fix the caliper also include concave/convex washers before and after the caliper, so a nice 3D adjust in possible, even if the frame or fork mount is a bit misaligned. The complete set with all adapters and bolts weights 430g. Of that 22g from the 4 adapters bolts (most people will not use and them), each calipers weight 165g (without any bolts) with pads, the caliper bolts weight 13.5g a pair (4 in total), plus 10.7g of washers for each caliper. Each washer pair (concave/convex) is 5.25mm high stacked, and around 11.7mm in diameter. The 0mm adapter (front 160) weights around 14.5g. Each brake pad include is around 25.8g with the spring.