This jar opener features two rows of sharper, wider stainless steel teeth that grip the lid edge securely and reduce slipping during turning. The teeth contact the lid surface across a wider area, providing reliable traction on many lid textures. The tool is manufactured with a more precise forging process to improve durability and long term usability. You can use it in two ways: as a handheld grip at the counter, or mounted under a cabinet, shelf, or counter for convenient storage and one hand operation. To install under a cabinet, mount with the included screws and position where it can be reached easily. To open, place the V shaped notch over the jar, align the lid so the teeth touch the edge, then twist counterclockwise to loosen. It is designed to handle lids from small caps to wide mouth jars, with a diameter range roughly 0.4 inches to 4.72 inches. This makes it suitable for bottles, jars, pickle jars, jams, and peanut butter containers. It can assist people with limited grip, including seniors, arthritis patients, and those with restricted hand movement. For any concerns, a simple support contact is provided. The design emphasizes low effort and steady control during turning. Color: White. Material: Plastic.