This is the strongest resistance band from Fitness-Mad and is ideal for the strong and athletic user. Supplied with resistance training booklet covering key resistance exercises. Each band comes in a PE bag. Features Resistance: Strong Colour: Black Quantity: Sold Singly Each band comes in a ziplock bag. Resistances: Light, Medium & Strong. Size: 150cm x 15cm. Warning: Contains Latex Do Not Use if Allergic. Also available in the following resistances: Light: Ideal for beginners (Red). Medium: Ideal for those familiar with resistance training (Blue).