Foot Massage Slimming Health Sock- (The picture is the reverse side of the socks, the hot spot should be contacted with your foot ) AFIZ Tourmaline Slimming Health Sock uses high quality natural Hot spot by stimulating the acupuncture points of the feet to achieves a massage effect. Use our Socks is the natural and effortless way whilst you walk allowing you to enjoy new vitality and comfort Two uses for Our socks - 1 . if you want to Reduces Fatigue and Improves Blood Circulation to achieves a massage effect , please make the Hot Spot contacted with your foot . 2 . If you want our unisex anti skid socks offer better grip for improved stability & balance , please make the Hot Spot is outside Keep Your Feet Warm - Foot Warmer Can Be Used for Foot Acupuncture Point Massage, and Has a Warming Effect on Feet Feeling Cold.can Relieve Leg Fatigue and Regulate the Nervous System. Self-heating Eliminates Moisture, Odor and Swelling of the Legs to Regulate Blood Circulation Make Exercise Comfortable - AFIZ Tourmaline Slimming Health Sock Ideal for Outdoor Activities, Skiing, Snowboarding, Hiking, Hockey and Other Sports. the Bottom of the Sock is Designed with Tourmaline, Which Automatically Warms Up in Cold Weather and Relaxes Your Feet Package Include - It comes 3 Pair socks ( 1 pair Red , 1 pair white , 1pair black ) , That's enough to meet your daily needs , Also it could be perfect gifts for you share with you family , friend ,classmate , and so on