I opened the bottles by holding down the cap with my palm and rotating counterclockwise until the pump springs up. To close, I press the cap down and rotate clockwise. I find it easier to close the pump spray than to open it.

In the open position (with the pump rotated counterclockwise to spring up), the bottles measure 6-3/4 inches tall.

After removing the entire cap, I measured the opening of the bottle to be 1-inch in circumference.

In the closed position, the bottles measure 6-inches tall.

This Segbeauty 3 Piece Dispenser Bottle Set for the Bathroom and Shower comes in a clear plastic box containing the set. It is great for using in guest bathrooms as you can use economical products and make them look somewhat upscale. The mouths of the dispenser bottles are wide enough that they can easily accommodate the mouths of most shampoo and body wash containers which you might use to pour product into the bottles. A downside to these dispenser bottles is that it can be very difficult to initially twist and release the spouts. I found I had to literally unscrew the whole top and hold the part that sticks into the bottle before I could release the spout. If I had filled the bottle before doing this it would have been quite a mess. The take away from this is to release and unreleased spouts before putting product into the bottles since you will have to grasp the part that sticks in the bottle in order to do so. These will look nice on any ledge in a shower where you can set them together. They don't look as attractive if placed apart in different areas of the shower. Once you get through the initial spout release, everything becomes fairly easy.