Description The whole is forged with spring steel, which is strong and nice for superior durability, which features is strength and offers good corrosion resistance in bad environment like high temperature, and high humidity areas. Our spark plug wrench is suitable for most motorcycles, lawn mowers and small motor vehicles. It is also suitable for removing and installing 16 mm and 21 mm hex spark plugs. Features -Color:Assorted. -Material: Spring Steel. -Size: About20.00X8.00X3.00cm/7.86X3.14X1.18in. -Model: 16mm(5/8")/21mm(13/16")Lengthen. -Lightweight, small size and easy storage, show its greatest flexibility in the smallest space. -Comfortable grip, strong and durable, portable and long-lasting, extend serving life. -Beautiful and effective anti-rust, universal joint, rotatable to meet different work requirements. -The spark plug socket wrench kit is ergonomic design and provides maximum torque for fastening or demolition. -The flexible head allows access to confined areas, and helps you to install and remove spark plugs easily. Packing list1 x wrench2 x sockets