Measurement: 23.03" x 3.54" x 3.54"This bed rail is made with all-steel construction and fits up to a queen sized mattress. The toddler bed rail measures 59" in length and 21" in height adding a higher level of security and providing peace of mind that your child will remain in bed throughout the night. Requiring no tools to assemble the bed rail installs quickly just align the pieces click together add the mesh cover attach the T-shaped anchors to one side of the bed. It is covered with a durable mesh nylon fabric that encloses the steel frame the bed rail is comfortable to the touch. The fabric is easy to keep clean by simply wiping with a damp washcloth.This great bed rail is an ideal companion for your little kids to keep them safe in the bed. Just buy it now! --Can rotate 180 degrees for swinging down easily --The steel construction is sturdy and durable --Easy to set up --The mesh is breathable and could be detached for cleaning --Through the SIGMA test --Environmentally non-toxic and smooth angles --Require the thickness of mattress is more than 3" --Protect the toddlers children and elderly when they are in bed --The T-shaped supporting legs provide more stability