[60cm]
Product Description: Guardrail usage conditions
The height from the bed to the bed board is within 21cm (not the thickness of the mattress);
Embedded depth more than 8.3 inches (21 cm), the edge of the mattress and bed must have a finger gap between the bed; flat bed only need to be secured with screws to secure the bed plate (flat bed refers to part of the bed around the height of the bed frame cannot be used); The gap of the rib bed frame can not be larger than 18 centimeters (ribs must be purchased separately.)