Quilt Anti Slip Fastener Key benefits Prevents bedding from shifting during sleep while allowing natural movement for comfort and restfulness. Durable ABS construction with builtin springs provides reliable, long lasting anti slip performance. Complete set of four clips with adjustable height mechanisms ensures a secure fit across different mattress sizes and thicknesses. Compatible with both thin and thick mattresses for general household use. Easy tool installation; no complicated steps required and the clips stay firmly in place once positioned. What you get Four individual sheet fixing clips with adjustable height mechanisms Designed to effectively grip sheets on both thin and thick mattresses Suitable for general household use and multiple bed types Key features Material: quality ABS with an internal spring system for consistent tension Anti slip design: flexible claws work with varying mattress profiles to prevent sheet movement without tearing bedding Adjustable height: accommodates a range of mattress thicknesses while leaving slack space to avoid stressing or tearing sheets during vigorous movement Easy installation: no tools required; simply position under the mattress corner and the clips stay securely in place How to install Simply insert the quilt corner fixing clip under your mattress No tools or complicated steps are required The sheet holders stay firmly in place once positioned Use scenarios Standard bed with fitted sheets that frequently ride up at the corners, causing discomfort during sleep Beds used by active sleepers or children, where movement can loosen sheets; clips maintain a smooth, secure sheet surface Guest beds or vacation homes with varying mattress thicknesses; adjustable clips adapt to different setups to keep sheets in place without adjustment Specifications Brand model: Quilt Anti Slip Fastener Material: ABS with builtin springs Set contents: four adjustable sheet fixing clips Compatibility: suitable for thin and thick mattresses; general household use Installation: tool ; no special steps required Performance: anti slip with slack space to reduce tearing during movement