Versatile Jar & Lid Opener: Strongboy is a multifunctional opener that's compatible with a wide range of jar, lid and bottle sizes Jar Opener for Seniors: This jar opener is ideal for those with weak hands and limited hand strength, whether you're a senior or an adult experiencing joint discomfort Adjustable & Rubberized Band: This lid and jar opener uses a rubberized band that fit lids up to 4 inches or 10 centimeters in diameter Steady Lid Remover for Jars: This Zyliss tool includes a built-in locking mechanism for secure and steady grip during use Zyliss Kitchen Accessories: Zyliss kitchen tools are favored by everyday cooks & gourmet chefs alike