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★★★★★
4,8/5 (3.928+ reviews)

Heat Hollow Number Blocks Balance Set with 61 Linking Cubes

Regular price £49.95 Sale price£14.95 Save 70%
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Free Royal Mail Delivery Within the UK
30-Day Money-Back Guarantee
Only 3 items left in stock!
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EARLY BLACK FRIDAY SALE
UP TO 70% OFF + FREE MYSTERY GIFT 🎁
00DAYS
:
00HRS
:
00MIN
:
00SEC

Which number is bigger? Let the monster decide

These officially licensed number blocks toys bring the monster from the hit children's TV series into hands-on maths for ages 3 and up. Children build numbers one to ten from the 61 linking cubes, drop them into the two clear buckets and watch the monster's eyes, arms and mouth swing towards the bigger number, making greater than, less than and equal to instantly visible. Ten double-sided, language-free activity cards guide 20 playful tasks covering comparing numbers, addition and subtraction, and there is a sticker sheet, dry-wipe marker and activity guide in the box too.

Why you'll love it

  • Officially licensed: the lovable monster from the TV series, in balance form
  • 61 linking cubes: build the numbers one to ten and compare them
  • 20 activities: ten double-sided picture cards guide early maths play
  • Instant feedback: eyes, arms and mouth swing towards the bigger number
  • Everything included: balance, two clear buckets, sticker sheet, marker and guide

Perfect for: home learning, nursery and reception classrooms, birthdays and Christmas

We offer fast, free delivery with no minimum order value. Every order can be tracked at any time using its own tracking number.

We offer a 30-day right to return or exchange if for any reason you are not satisfied with your order.

The Heat Hollow promise

30-Day Money-Back Guarantee

Try it at home for 30 days. If it doesn't keep you as warm as you hoped, send it back and we'll refund you — no awkward questions.

Every order ships with tracking, and our team is one email away at support@heathollow.com.

No more shivering through winter


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Frequently asked questions

Most of our heaters and warmers give noticeable heat within one to two minutes. Exact times are listed in the product description.

Our heaters are designed with safety features such as overheat protection, and many also have tip-over protection — check the product description for the exact features. Never cover a heater and always follow the instructions.

Mains products come with a UK-compatible plug or adapter. Car products use the standard 12V socket found in UK cars.

Because you only heat the space or person you need, you often use far less energy than heating the whole house. The wattage is shown on every product page.

Yes, you can return items within 30 days after delivery. Contact us at support@heathollow.com and we'll guide you through it.

As soon as your order ships you'll receive a tracking number by email.

We accept major cards, PayPal and Apple Pay. All payments are encrypted and processed securely.

Email us at support@heathollow.com — we usually reply within 2 working days.

Tracked delivery

Every order ships with a tracking number.

30-day returns

Not happy? Send it back within 30 days.

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Number Blocks Balance Set with 61 Linking Cubes
Heat Hollow Number Blocks Balance Set with 61 Linking Cubes
£49.95 £14.95
Christmas Gift for Little Number Fans Aged 3+