Upgrade your exercise bike with this bolt knob and spring pin, designed for easy and secure adjustments. Its plastic construction and spring mechanism allow performance. ideal for home gyms and professional fitness centers, this accessory enhances the functionality and safety of your workout equipment. Features -Color:Black -Material:Plastic, stainless steel -Size:7.50X5.00X5.00cm/2.95X1.97X1.97in -Robust: crafted from plastic, this fitness equipment thread replacement screw is designed for durability and longterm use - installation: the exercise bike adjustment knob allows for fast and simple installation, making it userfriendly -Stable and secure: the elastic pin structure provides a firm and secure connection, allowing your exercise bike remains steady -Versatile fit: suitable for a wide range of exercise bike models, this fitness equipment ball knob is a practical replacement part for fitness equipment -Safety first: as a fastening accessory, it allows the safety and stability of your exercise bike, giving you confidence during workouts Package list: 1 x gym equipment pin