is this suitable for a rear facing car seat? Thanks

Hi Marcelle, thank you for your enquiry, yes the extension strap is suitable for rear-facing seats, especially if it is the australian standard that has the double tether for rear facing. We hope this helps. ?For further information on this or any of our other products available, if you follow the link https://www.babyonthemove.co.nz/store-locations/ this will take you to our online store finder. Here you can find contact details for your nearest Baby On The Move Store where one of our team experts will be happy to assist you in your product search and help answer any further questions you may have. We hope this has helped with your query.