This K-shaped weighted wristband adopts special K curve design, fits snugly on wrist or ankle without sliding. Made of soft skin-friendly breathable fabric, comfortable for long-time wearing. Adjustable velcro strap for flexible tightness. Detachable weight pouch allows you to adjust training weight freely. Ideal for walking, running, yoga, aerobic exercise and rehabilitation training. Multiple color options available. Custom logo, weight and packaging are supported.