[Adjustable Length]: 4PCS fitted bed clips with elastic straps which can be adjusted from 12inch to 39inch. It is very convenient to adjust to the length you need. [Keep Your Sheets in Place]: Bed fasteners are easy to put on and will keep fitted sheets from sliding off from corners all night and keep your bed looking great all the . Never worry about messy or wrinkled sheets again. [Fit All Kinds Of Sizes]: Bed holders will be able to fit all range of mattress sizes including: Twin, Twin XL, Full, Full XL, Queen, King & even up to California King sheets. This designed bed suspender work with all types of bedding mattresses and will grip your bed sheets firmly. [Durable Clips]: These bed corner holders are consisted of elastic straps, metal clips and -in plastic clenching system which will grip your bed sheets firmly and protects fabric from harm and no damage caused to your bed . [Wide Compatibility]: Our bed grippers fit with various sheets, it could be used on bed sheets, hospital bed, sofa cushion, mattress pads, tablecloth covers, chair / boat / car / motorcycle covers, ironing board covers and more. Colour: black Material: polyester Original size: 30cm Extended size: 100cm Package Contents: 4 x Bed Straps Only the above package content, other products are not included. Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.