1、 Middle pinch cock is flexible and can be moved left\/right and fixed. 2、 They are easy to use and will grip your bed sheets firmly, keeping your bed looking great at all times. 3、 Super smooth surface, no damage is caused to your bed sheet and furniture. 4、 Easy to put on and keeps sheets in place and no more fixing sheets, adjustable length allows desired tension.  5、 Made of high quality material, it is durable and has long service life. 6、 Elastic strap offers high elasticity and good extension, which fix items tightly. ----------------------- Condition: 100% Brand New Item Type: Sheet Straps Material: Iron + Elastic Strap Color: Black, White(Optional) Size: Approx.25cm/9.8in(extensible) Weight: Approx.104g/3.7oz ----------------------- 4 x Sheet Straps