This jar opener is made of heavy stainless steel and PP that will last and not rust. The jar opener is made of sturdy material and super durable. The steel teeth on the clamp grab the of the stubborn lid tightly and hold it the entire time you are twisting. Easily opens most jars with a simple twist With this jar opener, you will no longer have to struggle to open lids any more Perfect for seniors and those with arthritic hands. Features - Color: White, Green - Size: 8.5x4.2x6.7cm - Material: Stainless steel, plastic - Suitable for opening 2.5-9.5cm diameter bottle and jar. - Anti-slip and labor-saving, opening most small water bottles and wide mouth mason jars easily. - Great for home use and outdoor picnic. - Made of material for lasting use. - A great gift for your friend and family.