Features: brand new and high quality Made of high quality manganese steel material, practical and for sharp. The quenching technology can promotes cutting performance and wear resistance of the chain. Heat treated and quenched rivets-make for stronger connection between chain links. We offer 10 kinds options, you can choose one or more according to your needs. The same-saw can be equipped with different bar lengths. Please verify your parameters to ensure this chain works with your machine. Specifications: Material: Manganese Steel Size: As the Picture Show Type: Set 1/Set 2/Set 3/Set 4/Set 5/Set 6/Set 7/Set 8/Set 9/Set 11 Package Includes: 1x 6'' Chain 2x 6'' Chains 3x 6'' Chains 4x 6'' Chains 1x 6'' Chain + 1x Guide 2x 6'' Chains + 1x Guide 3x 6'' Chains + 1x Guide 4x 6'' Chains + 2x Guides 1x 4'' Chain + 1x 6'' Chain + 2x Guides 2x 4'' Chains + 2x 6'' Chains + 4x Guides note: 1.Please allow 1-3cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.