The office chair repair tool is suitable for a variety of chairs, you can apply them , school, office, restaurant, cafe, and other places, helping to fix the office chairs, which can bring you huge convenience. Features -Color:Multi -Material:Stainless steel , plastic -Size:6.70X3.00X2.90cm/2.63X1.18X1.14in -Note: Diameter:25-27mm -When your office chair starts to slowly sink down for a long time use, you can fix your office chair without replace or buy new office chair. -The office chair saver works! The office chair stopper keep the chair firm, you will save your office chair at a very favorable price. -Office chair stopper for stop seat go down, can control the height of the seat, prevent seat sinking. -Fine workmanship and creative appearance ensure its popularity and practicality. - craftsmanship and good material make it look simple yet . Package list: 2 x office chair savers