1 / 7COOLJOYA HW1045 Magnetic Building Blocks, 150 Pieces
COOLJOYA HW1045 magnetic building blocks are a 150-piece plastic construction set described for STEM-focused, open-ended play. The magnetic format supports building structures by hand, while customer feedback flags that the pieces may be smaller than expected.
At a glance
- 150-piece set for open-ended construction play.
- Magnetic connections are intended to help pieces join into structures.
- The listing identifies STEM as its educational objective and describes indoor use.
- Storage and flexibility are listed as features.
Reference price: £29.87
Price checked: 14 Nov 2026
View offerAhead of Black FridayExplore the selectionPros and cons
Pros
- The 150-piece format offers a range of pieces for varied constructions.
- Manual, magnetic play needs no powered operation or assembly, according to the listing.
- The manufacturer lists an instruction manual as included.
Cons
- Customer feedback says the blocks are smaller than expected, which may matter for buyers anticipating larger building pieces.
Technical specifications
13 specifications| Brand | COOLJOYA |
|---|---|
| Model | HW1045 |
| Number of pieces | 150 |
|---|---|
| Educational objective | STEM |
| Theme | Fantasy |
| Recommended age | 36 months - 8 years |
| Power configuration | manual |
| Assembly required | No |
| Indoor or outdoor use | Indoor |
| Dimensions listed | 18 x 18 x 4 centimetres |
|---|---|
| Weight listed | 500 Grams |
| Material listed | Plastic |
|---|---|
| Special features | Easy Storage, Flexible, Magnetic, Non Toxic |
What to know before buying
- Listing describes the theme as Fantasy in the specifications but also refers to Dark Magma and Grassland themes in its feature text. The product dimensions are listed, but individual block dimensions are not stated, so check the selected listing if piece size is important.
What’s in the box
Included- User manual
Who is it for?
A good fit for
- Children within the listed 36-month to 8-year age range who enjoy hands-on construction play.
- Families looking for a manual, magnetic building set for individual or shared indoor play.
- Buyers seeking a 150-piece set with an explicitly stated STEM learning objective.
Less suited to
- Buyers who need confirmed dimensions for each individual block before purchase.
- Those seeking a building set specified for outdoor use.
Customer reviews on Amazon
- 5 stars
82% 82% - 4 stars
11% 11% - 3 stars
5% 5% - 2 stars
0% 0% - 1 star
2% 2%
Customer feedback highlights enjoyment, perceived quality, magnetic connection strength and extended building play. Some customers appreciate the variety, while others find the blocks smaller than expected. That size concern is particularly relevant because the listing gives overall item dimensions but not the dimensions of individual pieces. The supplied rating distribution is mostly five-star, but it does not explain individual experiences.
Positive themes
- Customers describe the blocks as fun to use and praise their magnetic connection strength.
- Feedback also describes the set as good quality and engaging for extended building play.
Negative themes
- Some customers report that the blocks are smaller than expected.
Mixed feedback
- Customers appreciate the variety of pieces, though feedback on variety is mixed.
Frequently asked questions
How many pieces are listed?
The set is listed as containing 150 pieces.
What age is the set recommended for?
The manufacturer lists a recommended age range of 36 months to 8 years.
Are the individual block dimensions provided?
No individual block dimensions are specified. The listing gives overall item dimensions as 18 x 18 x 4 centimetres, and customer feedback says the blocks can be smaller than expected.
Does the set require assembly or power?
The listing says assembly is not required and gives the power configuration as manual.
