1、Made from 65# Mn material, has high hardness, high cutting performance and corrosion and rust resistance. 2、Hardened by quenching process, high tensile resistance, high density and wear-resisting. 3、Heat treated and quenched rivets make closer connection between chain links. 4、Lightweight and compact size, easy to take out and carry around with you. 5、Perfect replacement for your forest harvesters and wood sawing which has 133mm-chain. This is a kind of quality electric chainsaw replacement chain, which is made from 65# Mn material, has high hardness, high cutting performance and corrosion and rust resistance. Heat treated and quenched rivets make closer connection between chain links. You can have a try. Features: Made from 65# Mn material, has high hardness, high cutting performance and corrosion and rust resistance. Hardened by quenching process, high tensile resistance, high density and wear-resisting. Heat treated and quenched rivets make closer connection between chain links. Lightweight and compact size, easy to take out and carry around with you. Perfect replacement for your forest harvesters and wood sawing which has 133mm-chain. Note: Please verify your parameters to ensure this chain works with your machine. Please allow 1-3mm error due to the manual measurement. Specifications: Name: Chain Material: 65# Mn Item length: 133mm / 5.24in Package size: 100 * 50 * 50mm / 3.94 * 1.97 * 1.97in Package weight: 3pcs: 150g / 5.29ounce 5pcs: 240g / 8.47ounce Package List(3pcs): 3 * Chain OR Package List(5pcs): 5 * Chain (3pcs): 3 * Chain OR Package List(5pcs): 5 * Chain