52PCS Rubber Hole Plug Grommet Assortment Kit;It can effectively protect your wiring projects and applications. They are made of rubber material,high elasticity,wear-resistant,corrosion-resistant,high temperature resistance,long service life.They are packed in a labeled plastic box,which is convenient for storaging,selecting and using. Easy to install: Choose the appropriate size according to the thickness of cable,use a knife to cut the diameter of the rubber,then insert the cable into the drill hole. Product application: It is used for wiring protection,it can be used to protect wires from abrasion and keep the cable clean and tidy;It is suitable for various electric cabinets and the inlet and outlet protection seal. Environmental grade:E1-E3 Flame retardant grade:V0-V2 Hardness:30 degrees to 100 degrees Temperature resistance:minus 60 degrees Celsius - 250 degrees Celsius Ease of Installation:Our various grommets are designed for easy installation and click-fit drill holes and metal panels. These rubber hole grommets are commonly used in holes in metal plates or other materials to protect cables, wires, wires and keep cables clean and tidy. Versatile Uses:Thread are used for line repairs, and can also be used to protect or cover sharp-edged or edged holes, cables, wires on firewalls and metal panels. Note:due to different production batches, the plastic box style is random,Do not accept the designation and will not affect the use Colour:Black Material:rubber Size: 1.1/2 inch DRILL HOLE 4pcs 1.3/16 inch DRILL HOLE 8pcs 1 inch DRILL HOLE 8pcs 7/8 inch DRILL HOLE 10pcs 13/16 inch DRILL HOLE 10pcs 5/8 inch DRILL HOLE 12pcs Package Contents: 52 x Rubber Grommets 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.