This is a butterfly knife trainer. It's affordable while still incorporating the key features of a trainer. It's also recommended for first-time users. Features: - Zen pin - Latchless - Bite handle indicator - Maintainable (Torx screwdriver included) Size and Weight: - 14.5cm (folded) - 25cm (unfolded) - 107g (center of gravity slightly towards the handle) Contents: - Main body - Spare parts - Torx screwdriver - Indicator (blue) Thank you for viewing.