YOCTOSUN Magnifying Glasses with Light for Close Work, Head Magnifier with 4 LED Lights and 5 Detachable Lenses 1X to 3.5X,Rechargeable Hands Free Headband Magnifier Glasses for Crafts, Hobby Coast of Maine Organic Products you can adjust the nylon

you can adjust the nylon rope to the desired length more quickly and accurately when training different movements

and more comfortable

Ideal for sharing the RENPHO bathroom scale and tape measuring with your family and friends towards a healthier lifestyle

rechargeable batteries or high-flow batteries

YOCTOSUN Magnifying Glasses with Light for Close Work, Head Magnifier with 4 LED Lights and 5 Detachable Lenses 1X to 3.5X,Rechargeable Hands Free Headband Magnifier Glasses for Crafts, Hobby Coast of Maine Organic Products you can adjust the nylonBrand: YOCTOSUN Features: Four LED Lights with Adjustable Brightness Levels: There are two brightness levels which provide excellent light for illuminating detailed surfaces. Two levels of brightness are available by pressing the switch on the top of the headset magnifier. Interchangeable Lens Design: Switch between 5 optical lenses using a simple click and release system. Magnification power of the head magnifier: 1. 0X, 1. 5X, 2. 0X, 2. 5X, 3. 5X.