Protect your straw while you’re on the go with our Magnetic Straw Covers. Equipped with a clever magnet, these covers perch on top of your Era, Resa, and MultiShaker Straw Lids so, when you're not mid-sip, simply flip it, stick it, and store it. Compatible with Era + Resa + MultiShaker Straw Lids. Warning: Choking Hazard - small parts not for children under 5 years or any individuals who have a tendency to place inedible objects in their mouths.