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Britax Roundabout 55 Car Seat in Onyx

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    The ROUNDABOUT® 55 achieves revolutionary head safety through the use of BRITAX SafeCell™ Technology, Integrated Steel Bars, and Versa-Tether® that work together to minimize head excursion and reduce the risk of head injury during a frontal impact.

    Rear-Facing 5 – 40 lbs, a standing height of 46 inches or less and seated shoulder height of 9 – 15.75 inches.
    Forward-Facing 1 year & 20, up to 55 lbs, a standing height of 46 inches or less and a seat shoulder height of 12 – 15.75 inches.

    SafeCell™ Technologyfeatures SafeCells designed to compress in a crash, significantly lowering the center of gravity and counteracting the forward rotation of the child seat which normally propels the child toward the front seat

    Integrated Steel Bars strengthen the connection to the vehicle and reduce forward flexing of the child seat during a crash

    Patented, Energy-Absorbing Versa-Tetherfeatures a staged-release tether webbing to slow the forward movement, reducing the crash forces reaching the child, and a two-point attachment to minimize forward rotation while anchoring the top of the child seat

    360 Degree Protection Features
  • Side Impact Protection comprised of deep side walls lined with energy-absorbing EPP foam distributes crash forces, shields from vehicle intrusion, and contains the head, neck and body
  • Tangle-Free, Five-Point Harness distributes crash forces across the strongest parts of the body and provides a secure fit
    Superior Fit and Comfort Features
  • 55-pound Weight Capacity for safety and comfort as your child grows
  • Rear and Forward Facing Recline for child comfort and positioning
  • High Density Comfort Foam provides an extra layer of padding to gently cushion your child
  • Plush, Easy-Remove Cover with matching comfort pads and infant body pillow to provide extra comfort and easy cleaning without disassembling or uninstalling the child seat
  • Two Buckle Positions for your growing child
  • Infant Positioning Insert may be necessary for small infants to achieve a snug fit of the harness around your child (sold separately)
    Superior Ease-of-Use Features
  • Premium Lower LATCH Connectors for a quick and simple installation featuring a push button for easy release
  • Built-in Lock-Offs ensure a snug lap and shoulder belt installation with minimal effort
  • Anti-Slip, Contoured Base grips and protects the vehicle seat while offering optimum vehicle fit
  • Convenient Harness Holders keep harness straps out of the way when placing your child in the car seat
    Product Specifications
    Product Weight (lbs) : 17
    Product Dimensions (L x W x H in) : 19.5 x 18.5 x 26
    Seating Compartment Height (in) : 23.5
    Seat Area Depth/Width (in) : 11.5 / 11
    Shoulder Width (in) : 13

out of 5.0
3 Reviews
Ratings Snapshot
5 Star
67% (2)
4 Star
33% (1)
3 Star
0% (0)
2 Star
0% (0)
1 Star
0% (0)
of Reviewers
Amazing Carseat!
By Lindsay
from Georgia
on August 7, 2012
Verified Buyer
We bought this carseat for our youngest son who will be 3 in October. When you look at it, it does not look like it will last very long. However, I had my oldest (6.5yo) sit in it and he was only about 4 inches too tall and still well within the weight requirements. I am very impressed with this seat. Our son loves it, and the install was the easiest I have ever done. We had a Safety First before this carseat and the two do not even compare at all. The Britax is like the Roles Royce compared to the Safety 1st. This will be the last seat he needs until he is in a booster, and that was our goal. The straps are easy to adjust, and the cover is so easy to get off to clean. We love this seat, as does our son!
Britax roundabout 55 car seat
By Debbie D.
from Racine Wi 53405
on July 30, 2012
Verified Buyer
It is very well made car seat.
  • It's very well made a very nice seat for your newborn but it is a very small seat.
  • The seat is a little small,my grandson is only 8 months and the seat is very tight,it's hard to get him out of it.
A must have!
By Angel
from Ohio
on May 21, 2012
Verified Buyer
We have a small 2005 Nissan Sentra we needed something safe but affordable. This car seat is the best we travel a lot and baby boy loves it!! For baby #2 we are staying with Britax!

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