klein — as the name suggests, is a take on the classic klein bottle concept. it is a dexterity puzzle with a metal ball inside.– the task is to extract the ball from the bottle.difficulty: 8 on 10size: 60 x 60 x 80 mmmaterial: 3D printed resin, finished with glossy lacquer & resin based paint.listing price is exclusive of shipping costs.please do not pay directly for the order, i will message you once you place the order for the further processes.timeline: i will require approx. 6 weeks to ...