This anodized aluminum guard protects the Binder connector on the Fathom Spool. It is included with all spools beginning 27 January 2022 and can be retrofitted on existing kits! SKU: BR-100200 HS Code: 7616.10.00 Contents - 1 x Fathom Spool Connector Guard - 4 x M3x6 button head cap screw - 4 x 4-5/8″ thread forming screw