DURABLE RUBBER CONSTRUCTION HANDLES STRESS EASILY: Designed to withstand the
pressure of constant slamming or bouncing on the floor or wall, our
air - filled Medicine Ball is made
of a durable rubber casing that is
burst - resistant and delivers twice the bounce than other brands.
North American studies
of bat deaths and wind turbines have found bats are killed either by being struck by turbine blades or by
air pressure changes caused by the turbines that
burst blood vessels in their lungs.