The Evolution tweezers are an efficient tool with a slanted/pointed design combination. They have many functions. The pointed side is used for special applications, such as removing splinters and pulling out ingrown hair. The angled side is then used to remove the hair. We recommend that you do not disinfect or sterilize the coated portion of the tweezers and always use the protective cap provided when storing your Rubis tweezers after use. Every pair of Rubis tweezers is handmade and although the tips are durable, their functionality may be compromised if the tweezers accidentally fall and hit a hard surface.