The Rike Knife 1507s Kwaiken Flipper is a high quality build from top to bottom. For being a long knife, around 8.5 inches overall, the Kwaiken only weighs a hair over 4 ounces. Thin, lightweight and just smooth as glass operation in this package. The medium-tuned detent is dead-on accurate for perfect flipping action and keeping closed when not in use.