Skip to product information
Pickup currently not available
Build, Create, and Conquer (Without the Mess or the Injuries)
Rather good news: we've invented a foam building block that's soft enough to be genuinely safe, yet sturdy enough to actually hold up your child's increasingly ambitious architectural ambitions. It's the sort of thing that makes you wonder why it didn't exist sooner, really.
Why Choose Our Foam Mega Cube Building Block
Sparks genuine creativity: Watch as your child graduates from simple stacking to full-scale imaginary fortresses, obstacle courses, and whatever splendid nonsense they dream up next.
Mercifully lightweight: Even small humans can move these about without requiring a lie-down afterwards. Splendid for rearranging, repositioning, and the inevitable midnight redecoration.
Soft foam means peace of mind: No more wincing every time a block tumbles. Your floors remain unmarked and your anxiety levels considerably lower.
Properly durable: The wipe-clean surface handles whatever creative chaos your household produces, from marker accidents to the mysterious sticky substances children seem to manufacture.
Product Details
Safety standards: CE marked and fully compliant with EN71 standards for mechanical safety, flammability, and chemical migration. In other words, thoroughly vetted by people far more cautious than we are.
Quality assurance: Produced under certified safety and quality processes because we believe toys deserve proper attention.
Colour: A rather fetching pine green that complements most playrooms without looking garish.
Invest in this marvellously made foam block today and watch your child's imagination flourish. Parents tend to order more than one.
SHIPPING + RETURNS
THE RATHER IMPORTANT BITS
This rather lovely piece ships directly from our brand partner - we work with independent brands who are absolutely brilliant and work frightfully hard to create beautiful things.
SHIPPING DESTINATIONS
Now, here's the thing - our wonderful brand partners ship to lots of different places, but not all of them can ship worldwide.
Some are brilliant at international shipping, others prefer to keep things closer to home.
At checkout, you'll see exactly where this particular brand can send your goodies.
We're terribly sorry, but shipping costs do vary rather wildly depending on where you are in the world. The exact figures pop up at checkout - no nasty surprises!
RETURNS
You have 14 days to return items.
Now, we absolutely adore our brand partners - they work incredibly hard and we do try to support them as much as we possibly can. So I'm rather afraid we have to pass the return postage costs back to you. Frightfully sorry about that!
🌍 PLEASE CHOOSE THOUGHTFULLY:
Our wonderful partners put their hearts into everything they make.
Ordering multiple sizes to try at home is rather hard on our planet and makes things jolly difficult for these brilliant independent creators.
When in doubt, do ask us first!
PAYMENT
We're frightfully modern and accept all the usual suspects:
Visa, Mastercard, American Express, PayPal, Apple Pay, Google Pay, and Shop Pay
SECURE AS HOUSES
Everything's properly encrypted and secure - your details are safer than the Crown Jewels!
All prices in lovely British pounds £ GBP, though international chaps will see converted prices.
Any payment pickle? We're here to help sort things out! Contact us
We Have Lots More Like This.........
Hello, we are Sostter....
Sostter began, as all good ideas do, with a lively conversation and a shared sense of frustration. Why had the world of independent design become so serious, so samey, so… beige? Where was the spark, the imagination, the sheer joy of discovering something that made you stop and stare?
We dreamt of a marketplace that celebrated difference — where curious minds could explore a world of independent brands, design-led makers, and thoughtful artisans. A space that felt exciting, human, and beautifully imperfect. Today, Sostter brings together remarkable people and their creations — from London to Lausanne, Brooklyn to Berlin — uniting makers and discoverers through craftsmanship, creativity, and conscience.
Every object tells a story, and every purchase supports an independent brand doing things differently. Explore our British makers, discover sustainable brands, browse women-led businesses, find the perfect gift for her, or simply wander through our new arrivals and see what finds you.
This is just the beginning. But enough about us — read all about us, or step inside and see what catches your imagination.
A Curated Marketplace for Independent Ethical Brands
Discover our world of independent brands, conscious design, and purposeful creativity — all in one place.
Sostter is more than a marketplace. We're here to inspire a more thoughtful way to shop — one that celebrates the makers, the dreamers, and the independent brands doing things properly. Every brand on Sostter has been individually vetted for its originality, quality, and values. From sustainable fashion and ethical homeware to handmade jewellery and design-led gifts — all brought together in one considered space. Browse by location, by purpose, or simply wander and see what finds you. Want to sell with us? We'd love to hear from you.
Be the first to know
Sign up to our emails for brand new small business magic and inspiration, and lots of lovely discounts and Sostter news