swim ring
rubber ring
swim tube
water donut

Ben gets two or more walks a day and plays with a rubber ring.

"Maybe you'd like to give the word to blow the air from the retaining rubber ring?"

Both therapist and client wear a rubber ring around a finger.

"We sometimes put rubber rings on them to restrict the blood flow.

The children had to throw a rubber ring onto a peg on the wall in order to win a prize.

Then we spy a sea lion pup with a rubber ring around its neck.

Rubber rings were used as shock absorbers on the landing gear.

Competitors could use surfboards, canoes or rubber rings to help them.

A small metal post, often with a rubber ring, typically found between and slightly below the bottom flippers.

Players take it in turns to pitch four rubber rings across a distance of around 8 feet onto a raised quoits board.

The vest has rigid molded cups with a soft inner rubber ring.

It has a rubber ring underneath to hold it in place while grating.

For example, a rubber ring on the bottom of a drink coaster may cause it to stay in place on the table.

In a swimming pool, rubber rings, balloons, etc. float How can you tell if the water is deep?

Added a soft rubber ring around the eyepiece.

A second component, a C-shaped hard rubber ring, is located between the crescent and the barrel.

Beneath the ball, at the openings in the faucet body where the hot and cold water enter, are two tiny rubber rings called seats.

A brightly striped rubber ring floated past them.

After all, I might want to use that particular ' "Anything to do with a little rubber ring for piles, perhaps?"

A steady wind hampered play, although a rubber ring that makes the speeder heavier helped a bit.

The manhole is covered by a lid and sealed watertight with a rubber ring.

The pull buoy can be combined with a rubber ring to tie one's feet together, so there is no notion of kick.

The side of his hand hit lightly into the rubber ring that cushioned the end of the cue stick.

Later patents such as Nr.102,913 improved upon this in various ways such as the addition of rubber rings.