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All In Cool

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Color: classic

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Unlock endless play potential with All-In by Stapelstein®. Harmoniously bringing together our Cool set and bundling it with the core layers of Inside, plus our multi-use Board, this modular play system which contains three elements instead of six is perfect for gifting and small spaces.

So whether you and your child decide to stack them, engage in water play, enjoy a round of toss or organize by color, there’s no wrong way to interact with our versatile and colorful elements.


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  • Safe stacking elements: no sharp corners or edges, water-, saliva- and UV-resistant 
  • Stapelstein® Original elements are 0.4 light and can support up to 396 lb in weight
  • Stapelstein® Boards are 0.6 light and can support up to 264 lb 
  • Stapelstein® Inside elements can support up to 110 lb in weight 
  • Dimensions Stapelstein® Inside:  
  • Inside S: Weight = 12 g, Diameter = 93.5 mm, Height = 42.2 mm 
  • Inside M: Weight = 38.4 g, Diameter = 155.6 mm, Height = 66.1 mm 
  • Inside L: Weight = 70.8 g, Diameter = 211.1 mm, Height = 87.6 mm 
  • Stapelstein® elements are made of eco-friendly EPP (expandable polypropylene) 
  • Is compatible with all Stapelstein® products 
  • Color of the actual products may differ from that on the screen, due to lighting conditions during product photography and different screen settings. 

Play safely

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If you want to use Stapelstein® products for balance games and for courses, it is best to do so on a level and non-slip surface. Stack the Stapelstein® elements only as high as you feel safe. We recommend that you stack a maximum of 3 elements if you want to climb a tower on foot.

Products from Stapelstein® are waterproof and can be taken into the water. However, they do not replace a buoyancy aid! Young children must be supervised when playing in the water with products from Stapelstein®.

Pointed objects and surfaces such as scissors, stones, knives, nails, wire or small pointed children's teeth can leave permanent marks on Stapelstein® products. Particularly severe damage can affect the stability.

Maximum load Stapelstein® Original: 396 lbs
Maximum load Stapelstein® Board: 264 lbs
Maximum load Stapelstein® Inside: 110 lb

Download instructions here

Made in Germany

All In Cool
All In Cool
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Educationally valuable

Indoor & outdoor

Free from pollutants

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How to use

Whether you and your child decides stack them, engage in water play, enjoy a round of toss or organize by color, there’s no wrong way to interact with our versatile and colorful elements.

Explore these 7 game ideas in our Digital Play Cards to get started with Inside.

Download Inside Games
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What makes Stapelstein® special?

All Stapelstein® products are modular and can be combined with each other. Inside’s nesting elements fit perfectly on the interior of our Stapelstein® Original elements, opening up endless creative play possibilities. All while adding a pop of color and design to any room.

Stapelstein® elements are durable and made to last. Our products are developed by experts in education and design.

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