The safe alternative to traditional bumpers, this gorgeous liner designed by breathable baby helps to keep your little one s tiny limbs safely inside the cot, whilst still allowing air flow. this liner is designed to be used on standard and cot bed size cots with slats on all four sides. also suitable for boori and other sleigh style slatted end cots. Extra length provides for full adjustment to fit from standard cot to cot bed size. Complies with all uk and us safety standards, including bs1877: part 10.