describe Elasticity: Adjustable + stretchable from 10cm (minimum length setting) to 35cm (maximum length setting). Design: Triple protection design pulls the sheets and sheets tightly to the corners of the mattress. The 3-pull elastic closure provides a stable and optimal hold for the bed sheet or sofa cover to prevent the elastic from slipping. Material: Made of solid chromed metal clips that bite tightly into the covering material thanks to the plastic teeth. EASY TO USE: No tools required, just hold the mattress and attach the clip to the edge of the sheet to stretch the tape length as needed. Wide range of uses: suitable for bed sheets, mattress pads, sofa covers, ironing board covers, ironing boards, tablecloths, car seat covers, etc. product information Technical Package Dimensions 11.5 x 11.5 x 3 cm; 120 g