Pentagonal post tower

Device made of non-impregnated mountain larch, tongue and groove planks made of 4 cm solid wood, highly resilient, no trickling through. Glulam beams made of non-impregnated larch, glued in accordance with EN 14080:2013, for very large wood cross-sections.  Climbing rungs made of hardwood (ash) Ø 4.2 cm, milled, tapped, secured against twisting. Retractable two-part screws. Professional climbing holds made of sand-synthetic resin mixture with safe anti-rotation system to prevent unintentional twisting of the holds.