Review on 🥤 Set of 4 Cocostraw PerfectFIT 18/8 Stainless Steel Drinking Straws for Contigo Shake and Go 20 oz Auto Close Tumbler - Includes Cleaning Brush by Joshua Gulledge

These straws are advertised as Contigo Shake and Go compatible but are not. They have a small rim/cork at the bottom of the straw that prevents a regular cup from being pulled out. However, for cocktail cups, insert the straw from the top so that the rim prevents the straw from going in. You need to remove the lid and insert the straw while holding the auto close latch open. Completely contradicts the purpose of the cup. I tried to return the straws but the seller doesn't offer a refund. Waste $$