One of Oasis's most popular items is the Bell-Bottle. The wide variety of gem-like colors guarantee that pretty water bottles are available in favorite tints to pleae everyone. Bell-Bottles are rigid (formed using breakage-resistant rigid styrene plastic), and hold water well. Complete with color coordinating caps, stainless steel drinking tub containing two stainless steel balls, and mounting bracket.

The OASIS® Bird Bottles have a specially designed "Triple Ball Point" tip with a built in reservoir featuring a red nylon ball to attract birds. There are two stainless steel balls above the red ball to add weight and seal against dripping. The drinking tube-style Oasis Bird Bottles offer a sanitary clean water supply that is not contaminated by seed, seed hulls or droppings.

The green bottle color helps protects water supply from damage by sunlight, preserving vitamin and/or medication potency and inhibiting bacterial growth. The floating white ball indicates water level at a glance.

Packaging includes both a wire "U" shaped mounting bail and a coil spring mounting bail. The owner can use whichever bail is most appropriate for their situation, or double up and use both for active birds that tend to grab the drinking tube and play with their water bottle.

Outdoor bottle installations should be placed out of direct sunlight to both preserve the plastic bottle by minimizing UV ray exposure, and to prevent water from becoming warm and unpalatable to birds. The floating plastic ball indicates water level at a glance.