StoreDeal.ai store
Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • Use in AI assistants
  • Contact
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.·2222 Ponce de Leon Blvd, Miami, FL 33134·support@deal.ai
TermsPrivacy
Deal.ai
2
2nd Seat Kit 3.0

2nd Seat Kit 3.0

4.6(993 ratings)

Best price now

$175.00at MockingbirdChecked Nov 8

Prices are checked against each store and labelled with when.

Visit Mockingbird

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Price facts

  • Last seen at $175.00 at Mockingbird on Nov 8.

Our take on the 2nd Seat Kit 3.0

The 2nd Seat Kit 3.0 turns a Single-to-Double Stroller into a two-seat stroller. It adds a second seat plus the adapters that mount it, so you can carry two children on one frame. It is for parents who already own the compatible stroller and want a second seat without buying a whole new double. Compared with buying a separate double stroller, it keeps one frame and one fold, but it only fits the stroller it was made for.

Best forParents adding a second child to an existing Single-to-Double StrollerFamilies who want one stroller instead of a separate doubleGrowing families with a toddler and a baby
Pros
  • Adds a second seat to a stroller you already own
  • Includes the adapters needed to mount the seat
  • Keeps one frame and one fold instead of a second stroller
  • Rated 4.6 out of 5 across 993 ratings
Cons
  • Only works with the compatible Single-to-Double Stroller

2nd Seat Kit 3.0 prices at every store

  • MockingbirdNew

    In stock

    $175.00Checked Nov 8
    Visit Mockingbird

What reviewers say

  • 4.6 / 5993 ratings

Owners rate it highly, at 4.6 out of 5 from 993 ratings. They mainly value turning an existing stroller into a two-child setup without buying a new one.

What people mention
  • ConversionPraisedOwners like turning their single stroller into a two-seat setup.
  • AdaptersPraisedThe included adapters are seen as making the second seat easy to mount.

Questions and answers

What is included in the 2nd Seat Kit 3.0?
A second stroller seat and a set of adapters for mounting it.
Which stroller does it fit?
It is made for the Single-to-Double Stroller and is not a universal kit.
Can I use it with just one child?
Yes, but the second seat stays attached and adds weight and length.
Do I need tools to install it?
The kit includes the adapters; the seat mounts to the stroller frame with them.
Is it worth it over buying a double stroller?
If you already own the compatible stroller, it is the simpler route to two seats.
Where is the 2nd Seat Kit 3.0 cheapest?
At Mockingbird, for $175.00, as of our latest check.
What do buyers say about the 2nd Seat Kit 3.0?
Rated 4.6 out of 5 from 993 ratings.
Adds weight and length to the stroller once fitted
  • Second seat takes up space when only one child rides
  • ValuePraised
    Buyers see it as a cheaper route than a separate double stroller.
  • BulkMixedSome note the stroller gets heavier and longer with the second seat on.
  • CompatibilityCriticisedIt only fits the matching Single-to-Double Stroller, which limits buyers.
  • About the 2nd Seat Kit 3.0

    The 2nd Seat Kit 3.0 expands a Single-to-Double Stroller so it can carry two children. It adds a second stroller seat to the stroller.

    The kit includes a set of adapters that create room for two seats.

    In the box
    Second stroller seat, set of adapters
    Compatibility
    Single-to-Double Stroller