Easy to Insert Narrow Areas: The inflatable air shim is very thin when have not inflated, used with the included pry bar, it is easy to insert into narrow gaps. Easy to use, no matter for door or window gap, furniture, car doors, etc Saving Time and Effort: The inflatable air shim s equipped with an airbag pump with metal valve, which allows for easy inflation and deflation, saving time and effort Wide Application: Suitable for door and window installation and positioning. Help to fast fix the window, casement door, wooden door, stainless steel door, copper door, horizontal and vertical adjustment. Also, it assist to lift the heavy objects 150kg Load Bearing: The inflatable air shim is made of quality composite TPU, which is strong and enduring. It can withstand 150 kg, practical and suitable for long time use Material:The air wedge if made of nylon double-sided TPU molding material for higher abrasion performance. Which is durable enough to be used again and again., Manufacturer: LuLobtg