bubble porthole

product information

Expand your play tower with KBT portholes, made out of sturdy 3 mm thick polystyrene. 

They are available in two different diameters: 
- Ø360 mm
- Ø530 mm

Both versions are 160 mm deep. 

All KBT products are being tested and being approved according to the latest European directives and regulations.

Product specifications

• Product group

  Commercial use > Construction
• Product type

  Commercial use, Construction
• Dimensions

  Ø 530 x 160 mm
• Documents

  product datasheet  
• Article code

  800.053.001.001