Brand: MADOG Type: Ankle Resistance Bands Set Color: Black Ankle Strap Material: PP Webbing Resistance Band Material: TPR Ankle Strap Size: (L)13.5" (W)2.0" Resistance Band Length: 21.0" Recommended Ankle Circumference: 8.0" - 10.0" Total Tension Level: 40 Pounds Number of Resistance Levels: 4 Package Included: 2 x Ankle Straps, 4 x Resistance Bands