‘Luukku’ chair by Satoshi Ohtaki; photo by Paavo Martikainen.

“Currently on view as part of the ‘Protoshop’ exhibition at Helsinki’s Habitare design fair, the simple chair ‘was designed to bring out elastic nature of ash’ and features a a distinctive, violin-like opening created by an extremely-thin (4mm) top board which ‘bends under the weight of the sitter and enables soft sitting on a hard material.’” - DailyTonic