*****FOR THE BEST FIT ONTO BOTTLES: PLEASE wash/use the lids up to 4x for the smoothest twist/fit. Have a brand new bottle? PLEASE was them in the dishwasher at least 2-3x as well for the smoothest fit.***** *PLEASE NOTE* These ONLY fit the flat/rounded base models of one name brand (most popular) shaker bottle brand (sizes 28oz & 32oz, NOT guaranteed to fit the 20oz size). Please wash the lids multiple times in the dishwasher before initial use - this will remedy any potential fitting issues. These lids only fit onto shaker bottles from ONE brand. Also, they DO NOT fit the Perfect Shaker Bottle Brand, Hydra cup, Shakeology Brand, Ice Shaker brand, Jax Brand, Blue Peak Brand, nor are they compatible with mason jars. Here at Impeccable Lids, we were extremely frustrated with the poor quality lids that come with most shaker bottles. Unacceptable, right? After months of experiencing leaky lids when making a protein shake, I knew I needed to do something… My mother cemented this idea in my head when she was furious that I got my protein shake all over the walls and floor of our house! And the last thing you want to do is clean up a mess after working your tail off in the gym! We are the only company that offers the perfect/most universal replacement lid for those lids that keep on cracking. These have been specifically designed so they will fit well onto your shakers without any hassle, and most importantly, will not crack on you! We also know that lids can easily be misplaced. Instead of searching your entire house to find a lid, save some time, money (and the environment!) by having an extra replacement handy! This wide mouth, secure replacement lid is excellent for making protein shakes, smoothies, meal replacements, dressings, or pancake batter. The reliability you need for those lids that keep cracking as a result of daily use. BPA/PHTHALATE FREE & DISHWASHER SAFEWE STAND BY OUR LIDS WITH 100% CONFIDENCE! - PLEASE NOTE: PLEASE wash/use the lids up to 4x for the smoothest twist/fit. Additionally, if you have a brand new bottle PLEASE wash them 2-3x in the dishwasher as well before initial use for the smoothest fit. This WILL NOT void the 30 day warranty. At Impeccable lids, our mission is to make people’s lives easier...not harder! By designing lids that are just that. Impeccable. DURABLE AND MADE WITH BPA & PHTHALATE FREE PLASTIC! - Our lid’s are constructed with no harmful chemicals and are safe to wash on the top rack of your dishwasher. Protein bottles can smell really gross at times, and cleaning our lid’s is easier than lifting a two pound dumbbell. Shake your protein bottle with confidence again. CHOOSE THE ENVIRONMENTALLY FRIENDLY OPTION! - You happened to lose your lid and/or it cracked on you, right? Let’s all do our part in reducing the environmental impacts/excess plastic created for a new (and unnecessary) shaker bottle. Save some money with our impeccable lids and get your pump on… that’s what we call a win-win!. IMAGINE A PROTEIN SHAKE THAT DOESN’T LEAK! - Our impeccable lids are specifically designed with the gym rat in mind. With our leak proof design, you can leave your worries in the locker room and focus on what’s most important, getting those gains!. A delicious post-workout shake is crucial to help hit your personal fitness goals. COMPATIBLE WITH ONE BRAND ONLY - These can be used interchangeably with the different sizes of shaker bottles that you may have. PLEASE NOTE: These only fit ONE name brand (most popular brand) protein bottles (sizes 28 & 32oz ONLY). They also DO NOT fit the perfect shaker bottle brand, Ice Shaker brand, Shakeology brand, Jax Brand, nor are they compatible with mason jars.