RockShox Disc Brake Kit, comes with Front and Rear Calipers with pads installed, Front and Rear Discs, Some bolts and washers, an instruction manual and 3 stickersl. To be honest i don't know much about them and have no idea what they'll fit, they do look similar to AMP brakes. They seem to be in good working order.

Looking for £100 or near offers including UK Postage

The kits were surplus from the GT bicycles bankruptcy when Pacific Cycles acquired them, they unloaded the leftovers and these brake kits flooded the market, mostly through ebay dealers. They were meant to fit the STS & Lobo full suspension bikes, the calipers work best with cantilever-compatible brake levers, or STI road brake levers. One of the calipers comes with an IS disc mount, the other has a mount to fit I believe in this picture is for the swingarm of the frame. The rotor bolt circles are unique for the front (larger) rotor but the rear (smaller) rotor is the same as the 6-bolt ISO size.

Cheers for the information.