PACKAGE INCLUDES- Set of 20, the sheet clips hold the sheets in place and hold them tightly to the bed. It is only suitable for all kinds of mattresses with raised edges. It can be adjusted in two steps. The first step is used for thick raised edges, and the second speed is used for thin raised edges. MATERIAL- ABS hard plastic, not bendable.Can be used as snack clips. SAFE AND NEEDLE-FREE- Our quilt clips are designed without needles, compared to traditional bed sheet clips, they do not hurt the quilt, while providing safety for you and your child. TWO-GEAR CONTROL, EASY TO INSTALL- The bed sheet fasteners are designed with a two-gear opening, suitable for bedsheets of different thicknesses. The adjustable switch makes installation easier and saves time. It is better than bed sheet strap clips. WIDELY APPLICATION- The bed sheet holder is not only for bedsheet quilts mattress covers duvet blanket sofa comforter clips but also can use as page clips, clothing clips, sealing food clips, cable organizers clips, and so on.