Made from steel 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. and compact size, easy to take out and carry around with you. Note: Please verify your parameters to this chain works with your machine. size:4 inch Material:steel colour:Photo Color Package Contents: 8 * Mini Chainsaw Chain Only the above package content, other products are not included. Note: Light 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.