BED SHEET STRAPS FASTENERS: Made of premium-quality nylon bungee band + metal clamps clips, high-elastic fit for ALL sheets and covers: These sheet suspenders holds your sheets without readjusting and keep them stay in place all the time for sleep better. built-in plastic clenching system does not harm fabric. ADJUSTABLE & DURABLE HOLDER: The sheet holder is adjustable, Stretch from 7.9" to approx 23".which allows you to find the desired tension and keep your sheets tidy all the day. EASY TO OPERATE: Several simple steps to install and can hold your sheets tightly, keep your fitted sheets from sliding off the corners. MULTI-PURPOSE AND WIDE COMPATIBILITY: It fits for different bedsheets: Twin size, Full size, Full XL size, Queen size, King size, California King size.It can be used to help secure flat or fitted bed sheets and other bed covers such as mattress pads hospital bed, sofa cushion, tablecloth covers, chair / boat / car / motorcycle seat covers, ironing board covers mattress pads, tablecloths, slipcovers, etc. Keep your fitted sheets/mattress/couch/reclince and more from sliding off the corners.making the bed is easier and faster in the morning