Specification Brand : Tackform BulletPoint1 : THIS IS A 20mm BALL. THIS IS NOT COMPATIBLE WITH 17mm GARMIN MOUNTS, THEY ARE NOT COMPATIBLE WITH 1"/25mm/B Sized Balls. BulletPoint2 : All aluminum construction. Accommodates popular 1/4" bolts or 6mm bolts. 25mm Tall. BulletPoint3 : Great for a DIY solution. Quickly turn an existing M6 or 1/4"-20 bolt into a mounting location with this ball mount. BulletPoint4 : The Tackform Enduro Series is a collection of components focused around an aluminum 20mm ball. Our Enduro series is an entire ecosystem of components that can be mixed and matched to create the perfect mounting solution for your car, truck, bicycle, motorcycle, airplane, office, workbench or anywhere else you'd like to mount your Phone, Tablet, GPS and many other devices. This also works with other popular 20mm systems on the market. BulletPoint5 : Compatible with our entire line of Tackform Enduro Series 20mm components, which consists of suction cups, table clamps, headrest clamps, phone holders, tablet holders, action camera holders and more. BulletPoint6 : EASY INSTALLATION: Simply clamp the mount onto your exercise bike, equipment, or cart and tighten the knob for a secure hold. This makes it easy to install and remove as needed. An additional security knob is included with the clamp mount if you desire to keep the mount installed. Color : Black Color1 : Black Color2 : Silver CompatibilityOptions : Bicycle saddle rail CompatibleDevices : Garmin Varia CompatiblePhoneModels : Garmin Varia CompatibleWithVehicleType : Bicycle CompatibleWithVehicleType1 : Motorcycle CompatibleWithVehicleType2 : Automobile ExternallyAssignedProductIdentifier : 6976422651028 ExternallyAssignedProductIdentifier1 : 645312420056 ExternallyAssignedProductIdentifier2 : 0645312420056 GpsrSafetyAttestation : 1 IncludedComponents : 1 x TUSITA Mounts Holder with B Size 1" Ball, 1 x Screwdriver ItemName : Tackform 20mm Aluminum Ball with 1/4"-20 (6mm) Thru Hole | Enduro 20 Series | NOT for Use with 1" / 25mm / B-Sized Ball Systems ItemPackageDimensions_Height : 17.1 centimeters ItemPackageDimensions_Length : 2.6 centimeters ItemPackageDimensions_Width : 9.9 centimeters ItemPackageQuantity : 1 ItemShape : rectangular prism ItemTypeKeyword : gps-vehicle-mounts Manufacturer : Tackform Material : Aluminum Material1 : Stainless Steel Material2 : Thermoplastic Polyurethane ModelName : VEXPLO Cycling Mount ModelNumber : TF-AR-33 MountingType : Bicycle NumberOfItems : 1 PartNumber : TF-AR-33 Pattern : Automobiles ProductDescription : All Metal Under-Seat Seatpost Bike Mount for Garmin Varia Mount RTL510, RTL515 and TL300 Varia Rearview Radar or Tail Light ProductSiteLaunchDate : 2020-01-07T08:00:00.000Z Size : Long (5.91") Style : All Metal SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 1 UnspscCode : 31161500 WarrantyDescription : Lifetime Warranty WaterResistanceLevel : water_resistant