Safety: The high-strength stainless steel hook is easy to install to ensure safety. The boots have a thick, comfortable contour support pad Features: The product can improve intelligence and response ability, delay aging, and enhance consciousness Good load-bearing performance: Due to the high quality of gravity boots, they are extremely durable and comfortable, and can bear a lot of weight Comfortable: Thick and comfortable high-density foam cushion can protect your legs and ankles, suitable for most people. Relieve pain: prevent and relieve various diseases caused by sitting for a long time. The muscles of the neck and shoulders can also be stretched, thereby further increasing flexibility and reducing pain. Description: Inversion Gravity Boots for reducing back pain, spasms, and muscle fatigue Fights compression fatigue from jogging, aerobics, cycling, and other exercises Helps spread apart compressed discs and stretch back, neck, and shoulder muscles Single-action locking mechanisms attach to virtually any chin-up bar Coms in black. Specifications: Size: About 18 cm(H) Material:Foam + Stainless steel Colour: Black Type:Boots Sub-Type:Anti Gravity Boots Style:Fashion Sport/Activity:Gym & Training Muscle Group:Abdominal Model:2Gravity knee protector Scope of application: Horizontal bar on the door, large fitness equipment Efficacy:Fitness / Weight loss / Slimming / Increase Purpose1: Improve intelligence and response ability Purpose2: Delay aging and enhance consciousness Include: 2PCS Hanging Pull Up B oots Anti Gravity Inversion Hang Up Shoes Gravity Boots Shoes