About this item 【NEW UPGRADED BED RAILS】Our toddler bed rails have five size to choose--59"/70"/74"/78"/82.6"L*27"H,suitable for 99% type of bed,Designed for Twin, Full, Queen, King Size,independent lift & Safe Seamless Design,Making it easier and safer for you to take care of the baby. 【INDEPENDENT LIFT&SEAMLESS DESIGN】Double side child lock design to lift each side Independently and prevent accidental operation,easily to enter and exit the bed or hold the baby on the bed. This Child Bed Safety Rail use seamless press design, tightly pressing the mattress, truly seamless between the guardrail and the mattress, preventing the baby from getting stuck in the head or hands and feet. 【28-LEVEL HEIGHT ADJUSTABLE】28-level design height adjustable from 27" to 42" to fit mattresses of different thicknesses to ensure that the baby will not flip out. 【SAFE STURDY MATERIAL】Made from 100% non-toxic and harmless materials. safe for babies to touch and bite. High-quality steel frame structure, strong stability and durability. 【RECOMMENDED MATTRESS SIZE】Twin Size: 2 * 74.8" + 1 * 39.37", Full Size: 2 * 74.8" + 1 * 53.93", Queen Size: 2 * 78.7" + 1 * 59", King Size: 2 * 78.7" + 1 * 74.8", California King Size: 2 * 82.68" + 1 * 70.8" (Note: Please MEASURE the size of your mattress before purchase. Our suggestion is only a standard reference)