Camerton is a U-shaped kreivuolis (kreivuolis – curvy log) designed to tune curvy waves and to harmonize the curved arbours in the area. Camerton type kreivuoliai are often built on top of the roof of the arbour in order to spread the waves as widely as possible.
Krivių kreivuolis – a mythical creature that has long been seen as the guardian of curviness. The creature used to fly with his wooden wings, giving curvy forms for plain trees and relaxation for people.
Ragatkė – A catapult-shaped kreivuolis, usually installed in the porch of the arbour or in its four corners, capable of performing the defensive function of a fortress if the arbour had to be protected from unwanted intruders.