# COOLJOYA 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.

- [Original product page](https://bargainpostbox.co.uk/product/cooljoya-hw1045-magnetic-building-blocks-150-piece)
- [View offer](https://bargainpostbox.co.uk/visit/cooljoya-hw1045-magnetic-building-blocks-150-piece)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: COOLJOYA
- Model: HW1045
- Category: Toys & Games > Building Sets & Models
- Price: 20.95 GBP
- Previous price: 29.87 GBP
- Discount: 30%
- Price checked: 2026-11-14T10:16:54.668Z
- Rating: 4.7 / 5
- Reviews: 3131

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## 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.

## 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.

## Specifications

### Identity
- Brand: COOLJOYA
- Model: HW1045
### Set and play
- 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 and installation
- Dimensions listed: 18 x 18 x 4 centimetres
- Weight listed: 500 Grams
### Materials and protection
- Material listed: Plastic
- Special features: Easy Storage, Flexible, Magnetic, Non Toxic

## Before you buy

- 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.

## In the box

- User manual (Included)

## 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 feedback

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.
- Positive themes: 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.

## Images

![COOLJOYA HW1045 Magnetic Building Blocks, 150 Pieces — 1](https://bargainpostbox.co.uk/i/5AqB_pN18eJzahDTfm5hTTjIJA85AkSS8tZoVmrcKEk1uoy9L9YaMOuIkE2TQb2GYjDTTP79IgW-0lt1inVrp_Len-Tp3lql6SXI-aUTxuJpx4lmdfmgMbYl.jpg)

![COOLJOYA HW1045 Magnetic Building Blocks, 150 Pieces — 2](https://bargainpostbox.co.uk/i/eSAcKeWT2r3N7f8Z62G9vupCOMX3G0EcWyQn4nwDJv77cVfrc4NmIzhs7TD6Pht7Mccl2ECEZraIaE95JD6TpRffb4dT2JYPY4q6bvxtJvMggaR0Qu1rDxVD.jpg)

![COOLJOYA HW1045 Magnetic Building Blocks, 150 Pieces — 3](https://bargainpostbox.co.uk/i/3wbzqrbxfpcHDFgT-SHE8n1WNuvYk2KwG0l5vGcRUoyyolf6d6Snja5zkjfXWgb4XYn8P9_FRVdnaDaz5qweABKEjTgD9ahny-YuVgx9rswkKiggRmy02j7q.jpg)

![COOLJOYA HW1045 Magnetic Building Blocks, 150 Pieces — 4](https://bargainpostbox.co.uk/i/Y2YuZZ1af5jphC3_or2HEmb4BCKboewEfLb0SWdhT7OsIeC7dhmlyUnaGuZGdFdyYmgUEYGmwyu3OmODc_rhOy0gWpTI8qn03NiljvVnA9B2XmB894Az5aVp.jpg)

![COOLJOYA HW1045 Magnetic Building Blocks, 150 Pieces — 5](https://bargainpostbox.co.uk/i/_QbQJHDB-lZu3mr5umxTwlkpEh5mnp53wvWZMuaMX1x2c0Y1FuPtKgPLV0bXRUcdaeRLGlbPp3pzfd1VDUX89gvRgYt-HyXY_nXFMsVt4wEM3IjVIWM9D7z9.jpg)

![COOLJOYA HW1045 Magnetic Building Blocks, 150 Pieces — 6](https://bargainpostbox.co.uk/i/k2lcNBFHjqKz4bo90RTiVeOqk1zCnzPY8qCiZEklkBDAjyaL_RDgAy5yW2-Meah18s0kmWC4jEw_-yv06fMn9MoT2xQYODtPdc6LGtA68jffYPkG3WXvH0LK.jpg)

![COOLJOYA HW1045 Magnetic Building Blocks, 150 Pieces — 7](https://bargainpostbox.co.uk/i/oAHeTbSwM14I1iq9UH7dLGsYxVB1mwuhgHPaZlDDIrtJVFlCRlD8bdSukOpIoJ2VDBGeutQHq1rkoi18FbbeHVKxzmDXguW9PAY76R9xabGYeQ4oLNFzSCHv.jpg)