Convenient way to locate and mount a parking heater under passenger seat in Sprinter van. Wedge shaped part makes heater sit level to van improving performance. Wedge is machined on bottom to fit and locate on bumps in sheet metal under seat. Bonds in place with JBweld epoxy included. Thicker end of wedge has 1/4-20 inserts and screws to hold heater. Use self drilling screws included with heater for thinner end. Use as template for marking and cutting opening in floor. Made in USA from heat resistant plastic. Please reach out to Hein@DIYvan.com for technical assistance.