Summary: This must be the most expensive piece of foam ever marketed. How can Britax justify such an outrageous price for something which should have been fitted in the seat in the first place? They know they have got you over a barrel because it is for child safety.
Summary: As per other reviewers, it's a piece of foam. Costs 10p to make. If this cost me 10p I would rate it 5stars. If it cost me £1 I'd still give it 5stars. But it cost me near on £20 for something that should be provided par for course.
Summary: When I bought Britax Duo Plus seat, this Top Tether Kit was recommended as an addition by the site. I would of thought that as its supposed to be compatible with the seat that there would be proper seat attachments for the tether.