To use these hydraulic jack oil plugs, first identify the leaking or plug on your jack. Remove the old plug and clean the area thoroughly. Select the appropriate size from the set and insert it into the oil filler hole. Make a fit to prevent any oil leakage. These plugs are designed to withstand high pressure, providing a seal for your hydraulic jack. Features - Color: Black -Material:Rubber - Size: 1.40X1.40X1.10cm/0.55X0.55X0.43in -fit for multiple car brands: designed to be compatible with numerous car brands and models, this repair kit offers versatility for various automotive needs -durability and sealing: constructed with sturdy materials, these parts make a tight seal and performance, reducing the need for frequent replacements -maintenance kit: this set includes everything needed for a wide range of repairs, providing a full of automotive maintenance -Userfriendly installation: no skills are required to install or remove these parts, making them ideal for both diy enthusiasts and mechanics -Portable and convenient: the compact and lightweight nature of this kit makes it easy to carry, making you can perform repairs and replacements Package list: 120 x jack oil plugs