User-Friendly: Before use, please read the operating manual carefully Also, remember to release air and foam pressure for first use and any maintenance, and clean foam immediately after every use Use: Our foam dispensing is perfect for sealing, filling, and insulating small gaps in door, bathtubs, air conditioning hole, and more ErgonomicS Design: Selected from ergonomics for long use The distance between handle and the knob have been adjusted for more comfortable PTFE Coating: The expanding foam is cover with PTFE, easy to clean and foam from spilling : Our foam allows you to adjust the rate and dispense foam, making your work more efficient, Manufacturer: Msioytog