Sport-Thieme Rubber Bands Set Pro: For Stretching and Strengthening Exercises. The Sport-Thieme Rubber Bands Set Pro includes 5 latex-free elastic bands of each resistance level. These elastic and allergy-friendly training bands feature a smooth side and a textured side. With the smooth side, you benefit from pleasant skin contact, which is particularly advantageous during longer training sessions and exercises with consistent movements that require minimal friction. The textured side offers more grip and is therefore especially recommended for exercises that require increased control and a firm hold, such as weight training and stretching exercises. The surface texture also provides a massage effect. Color: Green • Length: 25 cm • Resistance: Strong • Material: Synthetic Rubber • Width: 4 cm • Thickness: 0.1 cm.