1.&Anti-slip: This bed sheet holders set is made from high-strength ABS+PP, durable&long-lasting. Surfaces adopt frosted process enhances friction. The innovative V-shaped bite structure is combined with widened surfaces, resulting in an 80% increase in sheet movement resistance. Embedded anti-slip teeth, external elastic band inserted into the slot to fix the bed sheet, double guarantee for a strong grip. Suitable for various fabrics(cotton, linen, Tencel, coral fleece, etc.). 2.Minimalist Installation: These lock sheet holders patented slot design enables a 'three-step operation' without the need for additional tools and complex steps: ① Hold the V-shaped fixator at the edge of the mattress. ② Cover the bed sheet with the fixator, insert the elastic band into the slot to fix the bed sheet. ③ Pull down, organize the bed sheet and press it under the fixator to keep sheets firm & tight. Daily use doesn't require dismantling the mattress, supporting unlimited reuse. 3.Full Size Adaptation: The bed corner sheet holders adopt 110 degree open adjustable structure is compatible with rounded/right-angle bed types, seamlessly fitting from a 0.9m single bed to a 2m king bed. Upgraded anti-pinch rounded corner design, increased bed sheet replacement efficiency by 70%, especially suitable for mattresses made of easy to slide materials such as memory cotton & latex. Even people who are not sleeping soundly can keep their bed sheets flat, eliminating gaps and wrinkles. 4.Universal King of Life Scenarios: Maternal and Boys and Girls Protection: Stabilize the 's diaper pad to prevent side leakage at night. Pet-friendly: Secure pet anti scratch pads to keep bedding tidy. Elderly care: Eliminates the risk of sheet sliding during. Hotel upgrade: Complete the standardization of room bedding in 3 minutes. Bedsheet holders can keep sheets in place in both winter and summer seasons.