smooth edge can opener effortless manual handy stainless steel easy turn knob openers

how to use 1. place at the edge of can. 2. turn knob forward to cut around the can. 3. turn knob backwards to easily lift lid. 4. the lid will not fall into the can and is smooth without any sharp edges. specifications: material stainless steel + pp color: red, black size: 20.6cm * 6.3cm * 4.2cm / 8.1" * 2.5" * 1.6" ( l * w * h )