Specification Brand : Z&J SPORT BulletPoint1 : [Adjustable Sculling Collar ]Made of a low friction material with a stainless steel band clamp. Only one screw needs to be tightened to adjust the inboard. BulletPoint10 : 37" Length BulletPoint2 : [Size] Inner diamester:1.9"-2.2" (48.6mm-57.4mm). BulletPoint3 : [Symmetric Sculling Buttons ]The symmetric design allows for use of both sides, extending the overall life of the collar. BulletPoint4 : [Sold in pairs] buttons are paired up with sculling sleeves. BulletPoint5 : [Use]This meant the shaft only required a “button” which is a collar-like fitting that kept it from slipping through the oarlock. BulletPoint6 : Snaps for managing length BulletPoint7 : Sold in pairs BulletPoint8 : Fits most wood and composite oars (including Sawyer SquareTop Oars) BulletPoint9 : 1.25" Plastic Quick-Release Buckle Color : Black ControlMethod : push_button Department : unisex-adult ExternallyAssignedProductIdentifier : 00810153788874 ExternallyAssignedProductIdentifier1 : 714819421085 ExternallyAssignedProductIdentifier2 : 0714819421085 ImportDesignation : 进口 IncludedComponents : Two (2) bushings ItemName : Z&J SPORT Sculling Collar for Sculling oars, Oar Stop Button for Sculling Oars (2 pcs/Set) ItemPackageDimensions_Height : 13.7 centimeters ItemPackageDimensions_Length : 4.3 centimeters ItemPackageDimensions_Width : 12.8 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : rowing-crew-oar-parts Manufacturer : Sawyer Paddles and Oars Material : Delrin ModelName : Sawyer Delrin Oarlock Bushing - 5/8" Inner Diameter (pair) ModelNumber : 562 NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : ZJSCULLO2 Pattern : Solid ProductDescription : Delrin oar lock socket bushings are designed to make rowing easier by reducing the friction between the oar lock and the tower. ProductSiteLaunchDate : 2015-08-14T01:42:49.171Z RecommendedUsesForProduct : Securing oars in rowing or boating activities Size : 5/8 Inch Style : 562 - Scull Grip, Ice Blue SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnspscCode : 49120000 WarrantyDescription : 1 year manufacturer