Both the sippy straw cap and silicone handles fit all Dr. Tommee Tippee Cup Dr. Brown's Milestones Narrow Sippy Straw Bottle With 100% Silicone Handles, 8oz Baby Sippy Cup Soft yet sturdy silicone handles make gripping easy and help teach baby new motor skills. More than just a straw sippy cup - Milestones Sippy Straw Bottle features a soft silicone straw that is weighted so baby can tilt and sip while learning upright straw skills., EASY GRIP HANDLES. Unlike other sippy cups, this bottle features a sliding cap that keeps messes contained when closed and offers spill-proof travel. SPILL PROOF WHEN CLOSED. The soft silicone straw is weighted so baby can tilt and sip while learning upright straw skills. WEIGHTED STRAW FOR TIP AND SIP. Brown’s™ Options+™ 8oz/250mL baby bottles and sippy spout bottles, meaning you can teach baby many new sipping skills with the same bottle! DR. BROWN'S Milestones Wide Neck PP Sippy Straw Bottle w/ Silicone Han Condition: Open Box Make the transition to a sippy cup simple for everyone! The weighted straw design makes using the cup easy for beginners. Would... BROWN’S NARROW BOTTLES. Dr. Brown's Natural Flow Options™ Anti-Colic Baby Bottle, 8 oz SIPPY STRAW BOTTLES FOR BABIES AND TODDLERS. Brown’s Options+ 8oz/250mL baby bottles and sippy spout bottles.