Stick Well with 4 Suction Cups ✔ The new drain hair catchers feature 4 detachable power suction cups that make the stainer stay in places. Easy to Use ✔ Install the 4 suction cups, cover the hair catcher on the sink drain and press the 4 suction cups to let them stick to the suface. Please lift each suction cup to remove when no use. Safe and Flexible ✔ The stainers are BPA-free silicone drain catcher with strong suction cups sealed so good that this thing does NOT slip around the shower. The silicone hair cathers are flexible and won't crack over time. Work for Most Flat Drains ✔ The drain catchers are quite large in size — about 5.71 inches across, will work with most flat drains (but not with pop-up ones). The catcher can be used in kitchen sink to stop food and in bath/shower to catch hair without interfering with water drainage. Package Include ✔ Grey Drain Hair Catcher*2; White Drain Hair Catcher*1; Detachable Suction Cups*12; Square Size: 5.71*5.71inch;