Martha Josey Super Knot Barrel Racing Rein Turquoise/Purple/Black Halter The REM mask uses blue

The REM mask uses blue light blocking technology to promote the natural production of melatonin for a more restful night of sleep while being exposed to artificial light

increasing the potential for inflammation and arthritis

you can choose to wear them throughout the night as well

7 foot 6 inch length with 3 knots on each side and brass conways

Pyrogen- and acetone-free

Martha Josey Super Knot Barrel Racing Rein Turquoise/Purple/Black Halter The REM mask uses blueTri color of turquoise, purple and black Martha Josey barrel racing rein aka the Super Knot rein. 8 foot length with 3 knots on each side and brass conways