This item allows for a 45mm height increase. I needed this for my new home and purchased it along with a 25mm type. However, I ended up not needing the 45mm ones, so I am selling them. Please check the dimensions in the third photo. Weight capacity: 400kg The material is 100% rubber. I researched various options and asked a salesperson at an electronics store, and it seems that this "Ashiage-tai" (leg-lifter team) is the best for raising the height of a washing machine. Apparently, types made of polypropylene have weaker vibration and soundproofing effects.