These Twister Jar Openers are very simple but effective jar openers that have been designed to give users that extra grip required when trying to undo a stiff jar lid.Simple in design, the Twister Jar Openers are a cone-shaped rubber moulding with fluted finger grips on the outside to allow the user to get a good purchase, and ribbing on the inside to ensure a good firm grip on the lid. Easy to use, a simple twist should see even the stubbornest of lids released.