This Block Dock is 8.45cm wide, 5.6cm tall and 3.7cm deep and weighs just 26 grams.
It will fit bars up to 3cm in depth – the shortest side of your bar and is designed to stop your bar going soggy. (keep it out of running water) Place your bar at the front of the Block Dock when new, let it lean to the back as it changes size and shape with use.
 
This soap dock comes with a pvc suction cup for mounting to surfaces that are smooth and non-porous (acrylic, glass, mirror, vitreous china, many smooth tiles but not all).  Wet the back before adhering. Suction cups won't stick to rough or porous surfaces, like textured tiles or paint because they can't form the vacuum needed to work. 
Please read all  installation and care recommendations on packaging.