Feature: PRECISION SPRAYING- Foam Gun Allows Expanding Foam to Be Applied Quickly and With Precision. Spring-Triggered Design Allows You to Precisely Control The Amount of Foam, Reducing Economic Consumption and Waste of Foam. STABLE PERFORMANCE--High Expansion, Small Shrinkage, Strong Bonding, It Is Ideal for Insulating and Sealing Small Spaces Such As Your Home Windows and Doors. PERFECT DESIGN--Ergonomic Design Means It's Comfortable to Use for Long Periods of Time. The Precise Thread Design of The Foaming Gun Is Easy to Operate and Durable. HIGH QUALITY--The Foam Gun Is Made of Aluminum Material, Copper Nozzle, Corrosion-Resistant, Not Easy to Block, After Use, the Gun Body is Easy for You to Clean. WIDE USE-- Foam Gun is Ideal for Caulking, Filling, Sealing and Insulating Small Gaps and Suitable for Balcony Doors, Windows, Bathtub and Cabinet. Specifications: Color: black Material: Aluminum & Copper & Plastic Size: as picture shows Package inclued: 1X Foaming Gun How to use the Small Polyurethane Foam Gun: 1.Taking a polyurethane foam gun, cleaning with polyurethane detergent to ensure unimpeded. 2.Taking a bottle of foam can, holding the middle of the tank body by hand, shaking the can body along the horizontal direction for at least 20 times to ensure that the tank pre-polymer fully mixed. 3.Removing the detergent on the foaming gun, taking off the cover on the threaded valve of the foam can, screwing the foam can to the foam gun interface along the thread. 4.Gripping the foaming gun to ensure that the foam can is on the top and the foam gun is under the tank, and then opening flow control valve of the rear of the foaming gun. 5.The tip is aimed at the bottom or inside of the part to be filled.It will start the construction when gently pull the trigger.It can be adjust to the appropriate flow through the flow control valve behind the foam gun. 6.After a tank of spray, if you want to fill, you can immediately remove the empty cans, according to the step 3 to re-install the foam can to continue construction. 7.When you finished,please remove the material in time and put on a special cleaning detergent to clean the foam gun to prevent the residual material curing plug foam gun. ATTENTION: 1. When you finished, please remove the material in time and put on a special cleaning detergent to clean the foam gun to prevent the residual material curing plug foam gun. 2. Place it where the baby is not accessible. 3. Do not point at anyone or any object, except the work object.