To use these glass suction cups, simply clean the surface of the glass and the table frame, then press the suction cup firmly onto the glass. The clear design ensures they remain unobtrusive while providing maximum grip. These pads are especially useful for outdoor tables where wind and movement can cause instability. Features -Color:Transparent -Material:Metal,PVC -Size:3.00X2.70X2.70cm/1.18X1.06X1.06in -Durable material: these suction cups offer durability and a nonslip surface for glass tables -Multipurpose: ideal for use tables, outdoor tables, and more, these suction cups protect your furniture from scratches and damage -Secure: the suction cup design provides a strong hold on glass surfaces, ensuring the pads stay in place and do not slip -Simple maintenance: these suction cups are easy to maintain; with water to keep them clean -Ample quantity: ensuring you have enough to cover multiple surfaces and meet various requirements Package list: 10 x suction cup glass spacers