This Bumper is a One Piece Crib Bumper that will fit around all 4 sides of a Standard Size Crib. If your crib has one solid wood side- daybed style crib see our listing for the 4 Piece Bumper for ideal fit. Bumper Heights: Crib Size- 8" More sizes and fabric options available. Message us for custom options. The slats on most cradles and cribs are made of hard and strong construction. They’re designed to make sure your child can’t crawl or fall out. The only problem is, that it can cause injuries to your babies, by hitting their head into the hard rails or having their hands or foot get stuck in between the railings. How This Pad Solves the Problem! This crib protector goes around the slats of the crib to create a comfortable buffer between your child and the hard unforgiving slats. This will help prevent them for rolling over and bumping into them or when they start crawling and getting curious, trying to stick their hands/head through them.