I love that they came in the perfect size with pre-drilled holes in the end so that I could fasten them down. They were perfectly spaced. I wanted to be able to complete building a platform bed for my daughter without asking my husband to do any of the work. These bed slats arrived in 1 day and I used a cordless drill to fasten them to my structure. They made my project simple. They are also the right strength for the bed because I have been on the bed with my nine-year-old daughter and it held our combined weight without any problem.