The side mendings are in packs of 10 and are created to be utilized on a metal bed frame on the side rails. They have two pins which click into the bed frame and keep the bed slats in location.
THE 52MM SINGLE BED SLAT HOLDER IS DESIGNED TO FIT A 52MM WIDE SLAT 8MM DEEP.
THE 63MM SINGLE BED SLAT HOLDER IS DESIGNED TO FIT A 63MM WIDE SLAT 8MM DEEP
THE TWO PRONGED SIDE FIXING IS TO FIT A METAL BED AND IS USED ON THE SIDE RAILS
PLEASE SEE IMAGES FOR DIMENSIONS