How does a phone actually work? How are sound waves transmitted? Physical laws are easily understandable with the speech tube fera made by stilum, when children are spaced from 10 m to max. 30 meters and talk to each other.

Material: Stainless steel
Item No.: 515210401
Equipment dimensions: 630 x 460 x 1400 mm
Maximum height of fall
Minimum space: 5545 x 1400 mm
Safety surfacing area:
Required safety slabs:
Recommended surface material: optional, the ground should be smooth and free of edges.
Safety: DIN EN 1176
Coating: Coloured granulate rubber coating
Age rating: from 2 years

All rights and product modifications reserved.