These latex bands come in 5 variable resistance levels from very light to extra heavy.
There is a handy information brochure that will provide the beginner user with some ideas on how to use them, the intermediate athlete will be able to make use of the varying strength levels to apply to your weekly loading schedule.
Keep them free from small stones and any sharp object that can jeopardise the longevity and once your workout is complete return then to the handy storage bag