Fantastic product! I travel for work and carrying my 'Black Mamba' is convenient and one hell of a workout. I have not entered a gym or wasted money on memberships since I bought this from ElastiTone. This product has kept me in top shape working muscles unachievable with free weights alone. I have used this product rigourously five days every week since purchase (7 months) and believe me there are absolutely no signs of damage, wear or cracking. Resistance bands are very much underestimated but results are not. i have dangerously snapped several other 'heavy duty' bands trying to achieve my goals. ElastiTone bands do not snap! The quality used is apparent visually and physically. I cannot rate the products or your company higher! Solid 10/10