Switch's Blender Bottle is the ONLY one you need for all your blended drink needs. Switch has really thought of everything with their Blender Bottle. It is thoughtfully designed with comfort grips on either side for easy handling. The body of the Blender Bottle is tapered, so it easily fits into your regularly sized cup holder & I find the taper useful as a smaller handed person with grip challenges. The Blender Bottle is equipped with a grid that clearly shows the volume measurements in both milliliters and ounces. The lid easily screws open & closed & has a comfortable, appropriately sized drinking spout. I also love the spout cover that snaps shut for reliability. As a Nurse living with a disability, I love the handy ring that is on the lid. Not only does it have a soft comfort grip for carrying one handed but it attaches to any bag, belt, or backpack. If left in the upright position, I can rely on the attachment ring as leverage to "torque" the lid open if I'm experiencing pain. The ball whisker is made of quality stainless steel & effectively blends any drink with precision. The Blender Bottle cleans easily with soap & water or can be tossed into the top rack of your dishwasher. Switch has also stamped the bottom of the Blender Bottle with care instructions, its dot com & the bottle's registration & protection of the U.S & foreign patents. You can also rest assured that you & your children can use it knowing that is completely BPA FREE & recyclable. I understand some may have reservations that the bottle is plastic & we are all doing our part to reduce the use of plastics but, I believe, Switch's Blender Bottle is of high quality that will last a lifetime if properly cared for. Personally I feel better knowing I chose Switch's Blender Bottle over some cheap, toss away knock off. It definitely gets my *slurp* of approval. Thanks Switch for always delivering on quality over mass quantity.