NZD ($)
New Zealand (NZ$)
Sign In
Cart ({{ slotProps.numberofitems }})

Added to your cart

Edinburgh Roadstar Convertible Car Seat Black
Colour: Black
$29.99 $19.99
Sub Total $799
Delivery FREE
Total $799

Baby Checklist

Login to save your checklist

  • Play Time
  • Bed Time
  • Clothing
  • Bath & Changing
  • Placeholder
  • Out & About
  • Health & Safety
  • Feeding
Britax One4Life ClickTight All-in-One Car Seat Onyx
Or pay with
4 x $199.75

Style Code: 4018945

Colour: Onyx

One Size

Choose Quantity

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • Details
  • Delivery & Returns
  • Specs
  • What you get
  • Manuals
  • Video


One4Life convertible to booster car seat grows with your child for 10 years.

  • The only all-in-one with ClickTight.
  • One4Life convertible to booster car seat grows with your child for 10 years - from 2.3 - 54kg & up to 160cm tall.
  • As the only all-in-one with ClickTight, it’s easy to install in seconds, so you’ll know it’s right. Every time.
  • Travel with peace of mind, knowing your child is surrounded in Trusted Britax Safety and Full Body Protection.


  • Patented V-Shaped Tether with staged-release stitches helps slow and reduce forward movement during a crash.
  • High Strength Steel Frame reinforces the seat structure to help keep it sturdy and stabilized.
  • SafeCell Technology acts as a crumple zone, absorbing crash energy to help keep it away from your child.
  • 2 Layers of Side Impact Protection: Energy-absorbing shell and foam-lined surround your child’s head, neck & torso.
  • 5-Point Safety Harness with diamond weave webbing.
  • ClickTight Installation. Install with confidence, every time.
  • Converts from a rear-facing infant seat (2.3-22.7kg) to a forward-facing 5-point harness seat (10-29 kg) to a high-back belt-positioning booster seat (18.1-54kg).
  • 10 years of use: grows with your child from 2.3-54kg.
  • Color-Coded Belt Guides make it easy to route the seat belt through the correct paths for rear-facing, forward-facing, and booster mode.
  • Removable Cover for easy cleaning without taking off the harness.
  • Dishwasher-Safe Cupholders easily twist out for cleaning between rides.
  • Easy-Pull Harness Adjuster lets you tighten the harness using just one hand.
  • Harness Holder Slots keep the harness straps out of the way while your child gets in and out of the seat.
  • Tether Storage keeps the tether straps organized and out of the way when not in use.
  • 15-Position, Quick-Adjust Headrest & Harness create the proper fit as your child grow
  • Stay-Put, Soft Comfort Pads help prevent the harness from rubbing against your child’s delicate neck.
  • Flip-Forward Buckle Pad stays out of the way for easy boarding; made with extra padding for premium comfort.
  • Built-In Cooling Channels & Ventilated Mesh improve airflow to keep your child comfortable
  • Removable Infant Insert helps keep your tiny baby safe and comfortable under 9kg.
  • Removable Head Pillow provides additional comfort for your growing baby
  • Built-In Arm Rests keep your child happy and comfortable while they ride.
  • Tag-Free Headrest supports your child’s head and neck without irritation.
  • Recommended Lifespan of 10 years from Date of Purchase

Delivery & Returns


We can deliver to any mainland New Zealand physical address. (Sorry this excludes Chatham Islands, Stewart Island and Waiheke Island - please contact our Customer Services Department for freight options)

$7.00 Freight Charge for any orders under $100 when delivered within New Zealand
Free Freight for any orders over $100 when delivered within New Zealand
$5 surcharge for rural deliveries

Oversized items freight costs will be:
$30 North Island, $70 South Island per oversized item - if a rural delivery please contact for a freight cost.

Gift Vouchers:
Freight is FREE for all Physical Gift Vouchers purchased to go to a New Zealand address.

Overseas Orders:
We also ship overseas. All our overseas orders go by New Zealand Post (with a tracking service). Overseas freight charges will be confirmed when you check out.

If you have any questions regarding shipping please contact us at

*Please note the free freight offer only applies to orders made online at and delivered within New Zealand. Exclusions for oversized items may apply.

Please allow:

2 - 3 working days for Auckland deliveries
3 - 4 working days for North Island deliveries
5 - 6 working days for South Island deliveries
Rural Deliveries: 2-3 extra days for rural deliveries. Please mention your RD number when placing your order.

Around public holiday periods - please allow a few extra working days. During the Christmas period - please expect courier delivery to take a little longer than usual.

Please Note: Breast Pumps are unable to be returned (exchanged or refunded) due to Health Reasons.


  • Product weight: 13kg
  • Product dimensions: 52L x 49.5W x 63.5Hcm
  • Seat Area Depth/Width: 33.7cm
  • Shoulder width: 33.7cm
  • CLICKTIGHT INSTALLATION: Install with confidence, every time. You’ll know it’s right in just 3 easy steps: Pinch to open. Thread & buckle. Click it closed.
  • SAFECELL TECHNOLOGY: crumples to help absorb crash energy.
  • PATENTED V-SHAPED TETHER: helps slow and reduce movement during a crash.
  • HIGH STRENGTH STEEL FRAME: Reinforces the seat structure to help keep it stabilised.
  • 2 LAYERS OF SIDE IMPACT PROTECTION: Surround your child’s head, neck and torso.
  • QUICK-PUSH, 9-POSITION RECLINE: Helps you find the most comfortable fit for your child and best fit for your vehicle.
  • 15 POSITION, QUICK ADJUST HEADREST AND HARNESS: Create the perfect fit as you child grows.
  • BUILT-IN COOLING CHANNELS AND VENTILATED MESH: Improve air flow to keep your child comfortable

What you get

  • 1 x One4Life Clicktight All in One Car Seat in Onyx
  • Instruction Manual




Write Review