Kurgo Skipping stones Non-toxic Dishwasher safe Easy to spot colors Never gets waterlogged Floats well even after a good chewing Sizing: Orange "Easy Rider" 4” W x 2.5” H x 1” D Green "Fat Bob" 3.5” W x 2.75” H x 1.25” D Purple "Tiny" 3.5” W x 2.5” H x 1" D