To mount them you will need medium size (removable) Command strips: https://www.commandbrand.com.au/3M/en_AU/command-au/products/~/Command-Medium-Refill-Strips-9pk-17021P/?N=5924736+3294529197+3294773681&rt=rud I made a passthrough and a closed version. To hold a meter long pipe with the towels you will need 2x2 pcs of them.