These luxurious domed-shaped screw-on bag feet require no special tools but a screwdriver.
The height of the foot is 6.4mm, and the diameter at the bottom is 10mm. At the top, the foot measures 6.4mm.
Add these to the bottom of your bags to assist in keeping them off the floor, and give your product a professionally finished look. These feet are connected with a screw that goes through the material of your bag. The screw starts from the inside of your bag, so no worries about them accidentally pulling loose.
You can always use a drop of glue (Loctite thread locker) on the post to permanently secure them.