Rubis perforated tweezer, each tweezer is individually crafted and tested to guarantee top Swiss quality. All tweezers are made of resilient, anti-acid, Stainless surgical steel and can be sterilized in acid or boiling water at any time. Ideal span, high stability, resilience of material and an ergonomically correct form account for effectiveness and ease of handling. Tweezers should not be resharpened and should only be used for what they are intended. Stainless Steel