This product is made of galvanized steel, which is corrosion-resistant, strong and durable. The coating is uniform, has strong adhesion and has a long service life. At the same time, due to the use of advanced automated production technology, the processing accuracy and smooth surface are ensured, making the product beautiful and elegant in appearance. [Hanging Heavy Objects]If you want to hang heavy objects, please choose this heavy-duty wall anchor assortment kit, which will solve your project needs. This kit contains 4 different sizes of toggle bolts and bolts. [Load-bearing capacity] Toggle bolt: M4x40mm-load capacity 22lb, m5x50mm-load capacity 33lb, bolt: m4x32mm-load capacity 66lb, m5x52mm-load capacity 110lb [Widely applicable to walls]: It can be used for hollow substrates such as hollow bricks, gypsum boards, cement fiber boards, and wooden boards. It is suitable for installing lamps, curtain rods, photo frames, coat racks, power switches, etc. Colour:silver Material:Metal Package Contents: 10 x Toggle Bolt M4x40mm 6 x Toggle Bolt M5x50mm 6 x bolt m4x32mm 3 x bolt m5x52mm Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.