The knife covers are constructed from high hardness PP plastic, which unlike its common alternative PVC plastic, is BPA-free and non-toxic. The surface is waterproof and easy clean, and it can be protect the blade effectively.
In addition to it being safer, we chose PP plastic over PVC for our knife sleeves as it is harder, more resistant to abrasions, and has a higher impact strength. We also designed our knife sleeves to be thick, cut-proof, and more durable than thinner, flimsier edge guards.