These high-quality riser pads are made by Ace Trucks MFG. and are 1/8" high. Riser pads, or risers, are hard plastic pads that can be inserted between the skateboard trucks and deck to increase the space between your wheels and your board, giving you extra room to try out some bigger wheels. Just remember that if you want to install riser pads to your board, you'll want to increase your hardware length as well. A good rule of thumb for choosing the right hardware to use with your riser pads is to simply add an inch to the height of the riser pads you're using. For example, if you're using .25" riser pads, we recommend getting 1.25" hardware.