Safety 1st onBoard 35 LT - River Rock

Safety 1st onBoard 35 LT River Rock

By Safety 1st

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$ 139.97 In Stock

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Description & Features+

Provide your baby with a superior fit for superior safety while traveling with the onBoard™ 35 LT Infant Car Seat. The 4 harness heights are spaced right to give your child a better fit all the way from 4-35 pounds. The buckle adjusts in two ways so that you can customize not only the length, but also the buckle's position on your child. Smaller babies get the extra support they need with head and body inserts that can be removed as they grow. The seat has also been designed for a better reclined body position to give your baby a safer ride. It's the lightest Infant Car Seat that can accommodate a baby up to 35 pounds. The harness adjusts easily from the front of the seat with a simple pull for a secure fit for your child, and the stay in car base makes it easy to snap in and out of the car with one simple click. The Car Seat is compatible with all strollers (sold separately) that feature QuickClick. This allows you to securely attach the Car Seat to your stroller with one simple click, making it easy to use the Car Seat and a stroller together as a travel system (sold separately). Getting the seat clean is simple too; thanks to a seat pad that is both machine washable and dryer safe. With the onBoard™ 35 LT Infant Car Seat, travel is safer and more comfortable.
• Rear-facing car seat for infants weighing 4 to 35 lb.
• Lightweight and easy to carry for comfortable traveling
• Side impact protection provides peace of mind
• Four harness heights accommodate both tiny and tall infants
• Easily tighten the harness from the front with a single pull
• Buckle can be adjusted in two ways to find the best position for your child
• Removable head and body inserts offer extra support for newborns
• Stay in car base makes it easy to snap in car with one simple click
• Seat pad is machine washable and dryer safe for easy maintenance
• QuickClick design means you can conveniently attach the car seat to any compatible stroller in a single click (stroller sold separately)
• UAS equipped
• Approved for use on airplanes
• Exceeds Federal Safety Standards


Available for Shipping to Canada Post
Age group
Newborn, Infants
Car seat weight (kg)
Child Weight Maximum (kg)
15.91 kg
Child Weight Minimum (kg)
1.82 kg
River Rock
Colour family
Model Number
Rear facing
Product Type
Safety 1st
Product Identifiers
Walmart Item #
31458728, 30628902
Model #

Return Policy+

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 > Return Policy

You can return this item within 90 days from the day you receive your online order.

There are two easy ways to return this item:

  • Return this item to a Walmart store
  • Return this item by mail

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