FEATURES of the Klean Kanteen Cafe Cap for Kanteen Wide Has a low-profile design Takes your bottle to new levels by making it a splashproof to-go mug Only has one moving part No BPA, phthalates, lead or other toxins This is super versatile and works on all Wide, Insulated, and Kid Kanteen Baby Bottles Dishwasher safe for when you are feeling really lazy SPECIFICATIONS of the Klean Kanteen Cafe Cap for Kanteen Wide Weight: 1.5 oz Size: 1.5'' (height) x 2.625'' (width) BPA-free polypropylene Cap is NOT leakproof. Don''t say I didn''t warn you. ExpirationThis product has no expiration date or the manufacturer has not provided an expiration date.