Here is the brand new double seat swivel base designed by the Customshop team. We have been manufacturing and supplying camper components to the trade and public for over 15 years now. The locking points work on a unique 1/4 turn 'quick release' system so removing all 4 fixing bolts and rotating the base takes literally seconds! They are manufactured in the UK and made from 4mm laser cut steel (raises the seat by 65mm), and has passed seat belt anchorage safety tests using a pull test on a specialist test rig to EC Directive 76/115/EEC as amended by 2005/41/EEC which is a standard requirement for insurance companies when making this type of modification to your camper / day van and also peace of mind for transporting your friends and family around. The base allows you to rotate the double passenger seat 180 degrees and lock the seat in the reverse position to completely transform the living area in your van and also as the added advantage to retain your under seat storage. It also is compatible drivers swivels / arm rests. Fits all Sprinter models from 2006 - Onward(Not suitable for the folding seat model, please mail prior to purchase) and fixes directly to the existing seat mounts so no drilling required, with an average knowledge of DIY and the correct tools installation takes approximately 40mins - 1hr from start to completion. Comes with step by step fitting instructions.