●SAFETY ENSURED: linch pin with ring is used to retain a trailer hitch or hold a wheel to an axle ●USAGE: Tractor pins are for tractors, trailer trucks, trailers, trolleys, lawnmowers, carriages ●INCLUDES: Stainless lynch pins assortment kit have 10 pcs each for 3/16"x 1-7/16" & 1/4"x 1-3 /4" sizes, 5 pcs each for 5/16"x 1-3 /4" & 7/16"x 1-3 /4" dimensions ●MATERIAL: Lynchpin is made of yellow zinc-plated carbon steel which is anti-rust and anti-corrosive ●TRANSPARENT BOX: The locking pin comes in a transparent box, arranged according to the size