please confirm the size before purchasing Durable: The installation screw is made of High-quality materials to strength and low weight. Because they are light, easy to use, stainless steel, scratch resistance and corrosion resistance Easy to install: Install the expansion tube and install the screw with screws. Brush surface treatment, durable Application: Wall -mounted bracket screws are good choices for companies, offices, supermarkets, stores, markets, bedrooms and other places Masterpiece: It is a wise choice for your DIY work. size: 19 x 25mm Material: Metal colour: As Shown Package Contents: 8 x Glass Nails 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.