The product is a pair of rear brake calipers designed for Audi A3 8P1 8PA 8P7, Seat Altea 5P1, and VW Golf MK 5 MK6. It is a floating caliper type with a piston diameter of 38mm and an installation size of 118mm. The calipers come in a silver colour and are made with aluminium piston material. The package includes two rear brake calipers for the specified vehicle models, with a seller warranty of 2 years and a manufacturer warranty of 2 years. Professional installation is required, and the calipers are designed for brake disc diameter of 253mm and thickness of 10mm.