Features: 1. Made of high quality stainless steel and plastic material, durable and long service life. 2. There is a box which you can storage these self-tapping and expansion tubes and it is easy to carry 3. The self-tapping screw has a repairing effect on damaged threads. 4. It is resistant to vibration and can prevent loosening. 5. It is easier and faster to install than ordinary wire screw sleeve. Specification: Condition: 100% Brand New Material: Stainless Steel + Plastic Package List: 10 * Gray Nylon Expansion Tube 6x30mm 10 * Yellow Nylon Expansion Tube 6x25mm 10 * Yellow Nylon Expansion Tube 6x30mm 10 * Yellow Nylon Expansion Tube 6x40mm 10 * Yellow Nylon Expansion Tube 8x40mm 10 * Gray Nylon Expansion Tube 6x26mm 10 * Sky Blue Nylon Expansion Tube 6x25mm 10 * Sky Blue Nylon Expansion Tube 8x36mm 10 * Beige Nylon Expansion Tube 8x60mm 10 * White Nylon Expansion Tube 8x80mm 10 * Self-Tapping Screws M4*30 10 * Self-Tapping Screws M4*25 10 * Self-Tapping Screws M4*30 10 * Self-Tapping Screws M4*40 10 * Self-Tapping Screws M5*40 10 * Self-Tapping Screws M4*25 10 * Self-Tapping Screws M4*25 10 * Self-Tapping Screws M5*40 10 * Self-Tapping Screws M5*60 10 * Self-Tapping Screws M4*80 1、Made of high quality stainless steel and plastic material, durable and long service life. 2、There is a box which you can storage these self-tapping and expansion tubes and it is easy to carry 3、The self-tapping screw has a repairing effect on damaged threads. 4、It is resistant to vibration and can prevent loosening. 5、It is easier and faster to install than ordinary wire screw sleeve.