Stainless steel one-handed water bottle, can be drunk with one hand. I bought it because I was attracted to the coolness and outdoor feel of the old STANLEY logo, and I've used it a few times. The mechanism is that you press the part under the lid with your index finger to release the drink. It closes automatically because of the spring. The spring part is quite sturdy, so I'm not used to it because I don't have much finger strength, and I end up using a different water bottle. Unfortunately, it hasn't been used, so I've decided to let it go. I think it's in generally good condition, but it's a used item, so I'd like to sell it to someone who understands that. I've taken pictures of some scratches, so please take a look. If you are considering purchasing, please read the profile as well. Thank you for looking. P.S. I had the instruction manual, so I'll include it.