Pressto Pressto holds a panel thickness upto 30mm thick... anything from coreflute, foam board and wood to metal, glass or stone can be displayed in this versatile product. A rubber strip runs the length of the jaws to add grip plus protect the panel from scratching and a threaded bolt beneath allows the tension to be controlled. Multiple units can be used for wider panels. With the addition of plastic end caps the base can be filled with sand for external use.