Dycem Non-Slip Jar Opener is made of non-slip Dycem material. This jar opener provides a soft, sure grip on bottles and jars. Handy kitchen aid to release stubborn jar lids. Flexible so it fits most sizes of jars and ensures a good seal when closing. Opens lids up to 4 inches (10cm) in diameter. Wash in soapy water to retain tackiness. Measures 4 1/2 inch diameter x 2 inches high. Shown in photo with a Dycem non slip mat to hold jar in place – great for one handed users. Dycem Jar Opener Features: Made of non-slip material. Provides a soft, sure grip on bottles and jars. Flexible rubber. Dycem Jar Opener Specifications: Opens lids up to 4 inches. Color choices – Blue.