Encoreus Stainless Steel Retract Safety Knife certified recycled plastic auto retract knife made with Encoreus Stainless Steel Retract Safety Knife (Recycled Claim Standard) certified recycled ABS, PC and stainless steel SK4 blade. Total recycled content: 93% based on total item weight. Encoreus Stainless Steel Retract Safety Knife certification ensures a completely certified supply chain of the recycled materials. Easy to use both with left or right hand. Will auto retract after use for extra safety. Packed in Certified Sustainably Sourced mix kraft package.