For a Guaranteed Leak-Proof seal*, twist lid closed until you hear/feel the click and you see the arrow on lid point anywhere within the zone marked on the cup rim.

For cups with spouts, push the valve firmly into both holes, until it can’t be pushed any further, to ensure optimal spill-proof performance and drinkability for child.

For straw cups, close the slider on the top of the cup to store the straw, keep it clean to help ensure best performance.

Do not use cups with carbonated beverages or pulpy juices. Do not use cups in the microwave.

*If not completely satisfied, then return for full refund of purchase price, or replacement.

The cups should be available at a variety of online retailers including amazon.com. You may also be able to find them in local stores including Walmart, Babies R Us, Target and Kmart. Replacement valves for our Spill Proof Cups are available at several online retailers including amazon.com and BabiesRUs. If you need another part, please call our Consumer Affairs Team at 1.800.222.0453.

These cups do not contain BPA.

Insulator® spout and straw cup
The Inner Cup is made of Polypropylene. The Outer Cup is made of Kostrate plastic. The lid is made of Polypropylene. The Straw and Valve are Silicone.

Lil’ Gripper® Spout and straw cup
The Cup is made of clarified polypropylene, the lid is polypropylene, and the straw and valve are silicone. 

The First Sipster® cup
The cup is made of clarified polypropylene and the lid is polypropylene with TPE (thermal plastic elasticizer) spout and handles.

The Sipster® cup and lid are polyethylene.

The First Lil' Gripper™ Straw Trainer cup
The cup is made of clarified polypropylene; the lid and slider are polypropylene with TPE (thermal plastic elasticizer) handles. The top straw is silicone and the bottom straw is high-density polyethylene.

Step 1: Clean the cup before first use and immediately after each use. Cleaning instructions: The cup, lid, and valve (or straw) are top rack dishwasher safe, away from the heat source, or are hand washable. Remove the valve from cups with spouts, or remove both straw pieces and open the valve connected to the short straw. For the First Lil’ Gripper™ Cup, separate the top from the bottom straw, from the lid before washing. For cups with spouts, store the valve under the lid when washing parts in the dishwasher. Avoid use of abrasive cleaners.

Step 2: For cups with spouts, after cleaning, pinch both ends of valve to open slits. 1). Then insert the valve firmly until it can’t be pushed any further. 2). For cups with straws, after cleaning, pinch attached valve to open slit before reinserting it back into the end of the short straw. 3). Then reinsert short straw though bottom of lid and attach long straw onto end of valve. For the First Lil’ Gripper™ Cup, attach long straw into top straw.

Step 3: After filling the cup, screw lid on tightly by twisting until the arrows line up and you hear/feel the click.

No, we don’t recommend microwaving since liquid inside can heat unevenly or over heat and burn baby’s mouth even if outside of cup feels cool.

It sounds like the silicone valve/straw is heeled together.  Gently pinch the bottoms of the silicone valve (or the valve attached on the top straw) to make sure slits at bottom are open.

Tips for Optimal Performance

• For a Guaranteed Leak-Proof seal*, twist lid closed until you see the arrow on lid line up with arrow on cup base, and you hear and feel the click.
• For cups with spouts, push the valve firmly into both holes, until it can’t be pushed any further, to ensure optimal spill-proof performance and drinkability for child.
• For straw cups, close the slider on the top of the cup to store the straw, keep it clean to help ensure spill-proof performance.
• Cups should be kept upright to ensure spill-proof performance.
• Do not use cups with carbonated beverages or pulpy juices.
• Do not use cups in the microwave.
• Do not use warm liquids.

The cup is leak-proof* and break-proof when used as intended.

*If not completely satisfied, then return for full refund of purchase price, or replacement.