flutterboards
/ˈflʌtərˌbɔrdz/
noun
- Plural of flutterboard; multiple lightweight boards used for balance or flotation in water.
- We rented several flutterboards for our beach trip so everyone could play in the waves.
- The store sells colorful flutterboards in different sizes for children and adults.
- The swim coach stacked the flutterboards by the pool for the next class.