1、These stencils are made of high quality stainless steel, the thickness of steel mesh is perfect 2、They can be heated by the hot air machine, these stencils are not easy to deform when heated 3、There are 6 different sizes and totally 130pcs, enough to meet your various needs 4、The specifications are marked on the surface, convenient for you to choose 5、It is specially designed for laptop, desktop, communication main board north-south bridge, and graphics card, etc all kinds of BGA chips These stencils were made by high quality material, can be heated by the hot air machine, it is easy and quickly for reballing the BGA IC. Features: These stencils are made of high quality stainless steel, the thickness of steel mesh is perfect. They can be heated by the hot air machine, these stencils are not easy to deform when heated. There are 6 different sizes and totally 130pcs, enough to meet your various needs. The specifications are marked on the surface, convenient for you to choose. It is specially designed for laptop, desktop, communication main board north-south bridge, and graphics card, etc all kinds of BGA chips. Specification: Material: Stainless Steel Color: Silver Quantity: 130pcs Weight: Approx. 268g / 9.5oz Package List: 3pcs x BGA Stencils for 0.35mm Solder Ball 2pcs x BGA Stencils for 0.4mm Solder Ball 7pcs x BGA Stencils for 0.45mm Solder Ball 35pcs x BGA Stencils for 0.5mm Solder Ball 60pcs x BGA Stencils for 0.6mm Solder Ball 23pcs x BGA Stencils for 0.76mm Solder Ball