Costzon 3-in-1 Convertible Baby High Chair
- 40 pounds maximum weight recommendation
- 21 x 26 x 36 inches depth, width and height
- No assembly required
- 8.7 kilograms, not portable
- Foam, polyester and plastic materials, blue
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A blue highchair that arrives with no assembly needed and a stated weight limit for the child. It is not portable, and the listing gives no tray, harness or recline detail.
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ASIN: B07436LF7PModel: BB4640Category: Highchairs
Overview
A parent setting up a feeding spot gets a blue highchair from Costzon that the listing says needs no assembly. Foam, polyester, polyethylene, polypropylene and polyvinyl chloride make up the materials.
Skipping assembly is a real time saver, and the weight limit is clearly stated. Buyers comparing highchairs will miss the tray, harness and adjustment details, and the chair cannot be moved easily.
Who it's for
A household with a fixed feeding spot that wants to unbox and use the chair at once. Families who travel, or who need harness and tray specs before buying, should look at fully specified models.
Pros and cons
- No assembly required
- Stated weight limit
- Harness type not listed
- Tray details not listed
Performance notes
Support comes from the stated materials and frame, and the weight recommendation sets how long the chair stays useful. The listing gives no harness or tray details, so feeding comfort and safety features are unconfirmed.
Specifications
| Brand | Costzon |
|---|---|
| Model | BB4640 |
| Dimensions & fit | |
| Maximum Weight Recommendation | 40 poundslower than 51% of 84 highchairs |
| Item dimensions | 21 x 26 x 36 inches (D x W x H) |
| Item weight | 8.7 kilograms |
| Item Dimensions D X W X H | 21"D x 26"W x 36"H |
| Capacity & performance | |
| Age Range Description | Baby |
| Construction & materials | |
| Material Type | Foam, polyester, polyethylene, polypropylene, polyvinyl chloride |
| Color | Blue |
| Included components | |
| Unit Count | 1.0 Count |
| Other details | |
| Is Portable | No |
| Assembly Required | No |
Closest rivals on specs
Badger Basket Envee II Convertible High Chair- Item Weight 19.18 vs 16.8 pounds (+14%)
Graco EveryStep 6-in-1 High Chair- Item Weight 19.18 vs 21.8 pounds (-12%)
Frequently asked questions
Do I need to assemble the Costzon BB4640 highchair?
No. The listing says assembly is not required.
Is the Costzon BB4640 highchair portable?
No. The listing says it is not portable.
Does the Costzon BB4640 have a tray or a harness?
The listing does not describe either, so check the product page.