Classic shape perfect for pool swimmers and SwimRunners. Multiple holes allow water to pass-through and provide various silicone tube strapping options. A great training tool for building strength and fitness in the water. 
 
SMALL
Made for beginners and swimmers with small hands. Sizing is 5.75" across and 7" tall.
MEDIUM
Made for age group swimmers or swimmers with larger hands. Sizing is 7" across and 8" tall.