Standard baby seats and booster seats will be provided free of charge to customers who book via top-car-hire.com and request them in advance. All seats are approved and comply with European safety specifications. If the customer wishes to hire a seat with special ISOFIX features, they can do so at the time of booking. This type of seat is not provided free of charge, and is subject to availability and compatibility with the selected vehicle group. Customers will be advised of this when their booking is confirmed. The charge for an ISOFIX seat is €10 per day, up to a maximum charge of €100 per vehicle hire. For further information, please contact our customer service centre via email. Please send your query to hello@topcar.es