Adjustable LengthAllows you to stretch your sheets as you like, Each side adjustable from 100cm to 300cm., for different family needs. Triangular designTriple protection to keep your sheets taut every day, which avoids any slipping of the elastic, without having to readjust them every night. Durable and StrongerThis bed corner brackets sheet triangle tie is made of premium elastic straps, metal clips and an integrated plastic clamping system. The fitted sheet tensioner allows you to easily put on and keep the corners of the sheet in place. Easy to UseThe bed sheet fasteners are very easy to use thanks to their human design.You can easily put it on your bad sheets in second without any tools, controlling the corners in place. Many UsesThis versatile bed sheet closure works great with adjustable bed sheet attachment, jar holder