This listing is for TWIN HOOK ON BED FRAME RAILS FOR HDBD/FTBD WITH ONE CROSS BEAM/GLIDE FOR SUPPORT HOOK ON METAL BED FRAME RAILS WITH ONE CROSS ARM GLIDE EQUIPPED FOR BED HEADBOARD/FOOTBOARD Rails used for Headboard / Footboard beds 1-1/2" x 1-1/2" High Carbon Rail Steel Rails feature 2 Solid Rivets ensuring strong connection Hook-In Rails with wide/narrow application Cross beam system for strength and sturdiness MADE IN USA