Elevate your butterfly knife skills with the Blue Shark Bottle Opener Butterfly Trainer, a training tool that replicates the look and feel of a real butterfly knife while providing a safe and secure environment for practicing your flipping techniques. Crafted with precision, this trainer boasts a sleek Blue design, thanks to its solid stainless steel construction. The 4” non-edged blade features weight-reducing thru-holes, enhancing balance and control as you perfect your moves. The handles are also equipped with weight-reducing thru-holes, allowing you to achieve effortless flips and spins. The Blue Shark Butterfly Trainer is designed for ease of use, with handles that swivel smoothly around their tang pins, ensuring fluid and precise movements during practice. When you're done training, securely fold and lock the trainer with the sturdy handle latch for safe storage and convenient transport.