Exercise bands are available in 5 resistance levels. You can use them either single or stack them to your desired resistance level max upto 100 Lbs. You don't need any special installation to use these bands. You can simply use door anchor to connect bands on any door that supports max weight limit. Make sure door is not opened by anyone while doing workout else you might fall off. Foam cushioned handles were given for sweat free use and comfort grip. Secure ankle straps were also given for your different work out needs. You can train your body by doing different work outs from your convenient place either home or office or anywhere you prefer. It saves lot of time and money you spend going to any outdoor GYM facility. You can burn calories and strengthen Arms, Shoulders, Legs, Thighs, Quads, Butt, Abs, Knees, Biceps, Triceps, Glute, Chest by toning your body using these resistance bands. Product is suitable either for Beginner or Advanced, Men/Women/Children. Our bands are made with industry standard TPE material which are stronger, durable and better than Pure Latex bands. TPE bands are less elastic, won't brittle and worn. Resistance bands are light in weight and easily portable wherever you go. Bands are attached to strong metal carabiners which won't snap or deform. Package Includes: 5x TPE Resistance Bands each of length 60 Inches 2x Quality Foam Cushioned Handles 2x Ankle Straps 1x Door Anchor 1x User Manual 1x Black Bag Warning: Do any workout with proper balance else might fall off while working carelessly.