Wide Mouth Tri-Flow Bottle -5 oz. from Munchkin The One Nipple Solution To Your Growing Baby’s Needs! 3 Different Flow Rates in 1 Nipple: Slow, Medium, and Fast. Wide mouth design makes filling and cleaning easier while wide, soft nipple promotes natural latch-on and suckling. Bottles have clear ounce/ml markings. All components are top rack dishwasher safe. Wide Mouth Tri-Flow Bottle -5 oz. from Munchkin Each bottle system includes: wide mouth bottle, silicone nipple, Tri-Flow ring, hood & sealing disk.