CanDo Foam Roller Black Compos Extra Firm Round 6 x 12 Safety Pins You can set the target Color:Yellow You can set the target zone for your training as beats per minute (bpm) as a percentage of your maximum heart rate or as a percentage of your heart rate reserve (HRR%) * Polar Fitness Test: Polar Fitness Test measures your aerobic fitness at rest in just five minutes 5 H * Measurement range: Pressure (0 mmHg 280 mmHg) Pulse (30 160 bpm) * Measurement accuracy: Pressure (Ò3 mmHg) Pulse (Ò5% of readings) * Cuff measures 26 * Molded composite foam rollers are perfect for positioning balance postural and muscle re education spinal stabilization body awareness and coordination and ranging and strengthening activities * Foam rollers are available in 36 18 and 12 lengths with either a round (circular) or half round (semi circular) profile