Specification Brand : HARFINGTON BulletPoint1 : Size - Clamp Inner Diameter: 28.6mm / 1.13"; Seat Post Diameter: 25.4mm / 1"; Color: Black; Package Includes: 1 x M4 Hex Screw Locking Bicycle Seat Post Clamp BulletPoint2 : Material - The bicycle seat post clamp is made of lightweight high-strength aluminum alloy, which has a smooth and exquisite appearance, wear-resistant and practical. Aluminum alloy has good corrosion resistance and can maintain a smooth and durable surface for a long time in indoor and outdoor environments. In addition, the surface of our seat post clamp is anodized, which further increases its surface hardness, is not easy to fade, maintains beauty, and extends its service life. BulletPoint3 : Feature - Our bicycle seat post clamp is easy to install, just tighten it with a 4mm hexagonal wrench, and the seat post height can be easily adjusted. It is not only lightweight, but also durable and lightweight, and the sturdy fixing bolt ensures double sturdiness and stability, providing a secure fit for your seat post, preventing any sliding or movement during riding, and using this reliable clamp to enjoy a stable and comfortable riding experience. BulletPoint4 : Application - he bicycle seat post clamp is a great accessory for any style of bicycle, and the more comfortable and efficient seat post clamp is loved by more cycling enthusiasts. Our seat post clamps are suitable for all types of bicycles, including road bikes, mountain bikes, folding bikes, etc. BulletPoint5 : Note - Our seat post clamp has three sizes for you to choose from, the 28.6mm clamp is suitable for seat post diameters of 25.4mm, the 31.8mm clamp is suitable for seat post diameters of 27.2/28.6mm. and the 34.9mm clamp is suitable for seat post diameters of 30.4/30.8/30.9/31.6mm.You need to confirm the seat post label or seat post size before purchasing the seat post clamp, and finally choose the appropriate bicycle seat post clamp. Color : Black ExternallyAssignedProductIdentifier1 : 0739665439138 ExternallyAssignedProductIdentifier2 : 739665439138 GpsrSafetyAttestation : 1 ItemDisplayDimensions_Height : 2 inches ItemDisplayDimensions_Length : 5 inches ItemDisplayDimensions_Width : 3 inches ItemDisplayWeight : 0.2 pounds ItemName : HARFINGTON Bike Seat Post Clamp 28.6mm Bike Clip Aluminum Alloy Bicycle Locking Seat Post Ring with M4 Hex Screw for 25.4mm Bicycle Mountain Bike Road Bike Post Tube, Black ItemPackageDimensions_Height : 11.3 centimeters ItemPackageDimensions_Length : 1.8 centimeters ItemPackageDimensions_Width : 6.8 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : bike-seat-clamps Manufacturer : HARFINGTON Material : Aluminum ModelName : FBA_SEAT CLAMP BOLT 22MM ModelNumber : 9aef7651-f2a9-4562-b704-da63a88bbb16 NumberOfItems : 1 PartNumber : hta241022hh002395 ProductDescription : The bicycle seat post clamp is made of lightweight high-strength aluminum alloy, which has a smooth and exquisite appearance, wear-resistant and practical. Aluminum alloy has good corrosion resistance and can maintain a smooth and durable surface for a long time in indoor and outdoor environments. In addition, the surface of our seat post clamp is anodized, which further increases its surface hardness, is not easy to fade, maintains beauty, and extends its service life. Our bicycle seat post clamp is easy to install, just tighten it with a 4mm hexagonal wrench, and the seat post height can be easily adjusted. It is not only lightweight, but also durable and lightweight, and the sturdy fixing bolt ensures double sturdiness and stability, providing a secure fit for your seat post, preventing any sliding or movement during riding, and using this reliable clamp to enjoy a stable and comfortable riding experience. The bicycle seat post clamp is a great accessory for any style of bicycle, and the more comfortable and efficient seat post clamp is loved by more cycling enthusiasts. Our seat post clamps are suitable for all types of bicycles, including road bikes, mountain bikes, folding bikes, etc. Our seat post clamp has three sizes for you to choose from, the 28.6mm clamp is suitable for seat post diameters of 25.4mm, the 31.8mm clamp is suitable for seat post diameters of 27.2/28.6mm. and the 34.9mm clamp is suitable for seat post diameters of 30.4/30.8/30.9/31.6mm.You need to confirm the seat post label or seat post size before purchasing the seat post clamp, but the seat tube wall thickness varies, you can first measure the actual outer diameter of the frame seat tube, and finally comprehensively choose the appropriate bicycle seat post clamp.