ITEM NAME:Bike Cycle Chainring Bolt Tool for Bicycle Crankset Nut Screw Removal Description: 93mm length for better leverage. Can be also used as 9mm and 10mm wrench Double ended to fit most slotted type nuts. Hardened steel for rigidity and durability. Securely holds the slotted nut to prevent spinning when tightening or loosening the bolt. Specification: Material: Steel Length: approx. 93mm/3.7inch Package Includes: 1 Piece Chainring Bolt Peg Spanner SKU: DMO0020859265007413.1 Piece Chainring Bolt Peg Spanner. 93mm length for better leverage. Securely holds the slotted nut to prevent spinning when tightening or loosening the bolt. Length: approx. Double ended to fit most slotted type nuts.