Specification Brand : Tomotato BulletPoint : 304 stainless steel BulletPoint1 : FUNCTION -- Fitness Equipment Pull Pin Spring Knobs are designed for helping you repair or replace your fitness equipment adjustment buttons, provides a firm grip and easy release for a comfortable workout. BulletPoint2 : UNIVERSAL SIZE -- Fitness Equipment Ball Knob size is 16mm, this ball knob fits most exercise bikes, contains 5 pieces of adjusting pin knob, which is sufficient to meet your maintenance and replacement needs. BulletPoint3 : PREMIUM IRON & PLASTIC -- M16 Adjustment Release Pull Up Spring Knobs is made of high quality iron and plastic. The knob features a built in spring handle, making it effortless to release. BulletPoint4 : WIDE APPLICATIONS -- Universal M16 Pop Screw Height Adjust Locking Grip can be used on various fitness equipment, such as exercise bikes, bicycles, strength equipment, fitness equipment and so on. BulletPoint5 : RELIABLE ALTERNATIVES -- Exercise Bike Pull Pin Spring Knob Replacement can ensure reliable performance and long service life, easy to install, and is reliable alternatives. Enjoy a wide range of exercises with ease. Color : Black Red ExteriorFinish : Iron ExternallyAssignedProductIdentifier : 00198421027062 IncludedComponents : Knob ItemName : Tomotato Fitness Equipment Pull Pin Spring Knobs, 5PCS M16 Pop Pull Pin Knob Indoor Exercise Bike Locking Pins Replacement for Fitness Equipment Exercise Machines ItemPackageDimensions_Height : 5 centimeters ItemPackageDimensions_Length : 20 centimeters ItemPackageDimensions_Width : 15 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : push-pull-knobs Manufacturer : Tomotato MetalType : Iron ModelName : Genericdmrn7itfvq-11 ModelNumber : Genericdmrn7itfvq-11 NumberOfBoxes : 1 NumberOfItems : 1 PackageLevel : unit PartNumber : Tomotatovn2kb5gzum Pattern : Solid ProductDescription : Specification: Item Type: Fitness Equipment Ball Knob Material: Iron + Plastic