Stanley 2-in-1 Drink Separator Silicone Liner, Compatible with 40 oz Cup, Reusable Liner for Party, Leisure, Outdoor, Office (Purple/Green)

I was pleasantly delighted that this thing works! I put ice tea on the pink side and drink at lunch, and then drink water from the light blue side in the afternoons. It gives me a treat of ice tea and not boring water all day. Follow directions- I have the inserts split right at the Stanley logo and begin to screw the open area of cover (not straw hole) exactly opposite the Stanley logo. When you do that, the open drink area of the lid ends up at the Stanley logo, which is where the drink insert splits. That allows you to stick the straw (I don’t use the enclosed metal/ rubber tip ones they come with) in whichever side you want to drink from. Genius! Try it yourself. You won’t regret it!

I was pleasantly surprised with the included two (2) stainless steel straws and straw cleaner that came with in the 2-in-1 drink divider product.I am very happy with the colors (Blue/Pink) I reserve blue for my water with ice and pink for my energy Yerba drink!Easy to hand wash, I don’t recommend putting in the dishwasher because it seems the product would possibly warp with a heated dry.The amount each divider holds is perfect for my routine and includes markings to show level of ounces.This item is for 40 oz Stanley Tumbler which I included in pictures with the Stanley 40 oz Straw as well.

Sometimes it's easy enough to take 2 cups wherever I'm going, but sometimes it's much more functional to have only 1 cup to carry but still be able to drink both my water and my coffee.Pros:- Easy to fit in the Stanley and fit perfect.- Simple enough to move straw back and forth.- Keep drinks cold still with less to carry.- Came with silicone straw tips to adapt any metal or plastic straw.Cons:- The colors of the straw tips were entirely different colors... but I guess that doesn't really matter when you can't even see these once the cup is closed.- Must keep cup upright at all times or drinks will mix. Challenging when you have toddlers... not a big deal if it's just you. This was more functional when I was moving around my house cleaning and could move room to room with both drinks easy.- Harder to move straw from side to side if you use an anti spill valve for the straw. But that is not really as useful since you need to keep it upright anyway, so I just removed it while using these.

The rubber don’t keep the coffee hot or cold for long

Clever idea for the person who is constantly bringing around multiple drinks.

What an absolutely brilliant idea! On my way to work every morning, I usually have to juggle my energy drink and my Stanley cup with water. Welp...not now! I purchased this divider. It comes in 2 parts. You just slide both down back to back into your travel mug and pour your 2 different drinks of choice on each side. It's a great fit, no leaking and super easy to clean. It even comes with two stainless steel straws, a straw cleaning brush and 2 silicone covers for the ends of each straw that match the colors of the dividers! Great value and amazing design! Now I have one cup instead of trying to carry multiple around!

This is one of the best Stanley accessories I have. Perfect for a movie night with friends where no one can decide what to drink. Or a roadtrip. Material is amazing and it fits just great.

Works but not convenient to use due to cleaning