Featuring good anti-scratch properties, this umbrella hole ring can effectively reduce the friction between the umbrella and the patio table causing scratches and dents on the umbrella pole, and eliminate the noise of friction. Due to the good toughness of this umbrella hole ring, it is very wear-resistant which can be used for a long time. Besides, it can also fix the umbrella and reduce the swing caused by the wind. It is made of high-quality PVC and rubber material. There are 3 sizes for your reference. It is perfect for coffee shops, bars, milk tea shops, yards or other glass outdoor patio tables, patio umbrellas, and even more options. Item Name: Umbrella Hole Ring Material: PVC, Rubber Features: Anti-scratch, Wear-resistant, Simple Installation Size Details: Rubber Hole: Height: Length: 5.74cm/2.26", Diameter: 3.8cm/1.5" (Approx.) Table Hole Plug: One Part: Diameter: 6.3cm/2.48", Height: 1cm/0.39", Other Part: Bottom Diameter: 4.2cm/1.65", Height: 1.5cm/0.59" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: Style A/B: 1 Set of Umbrella Hole Ring (2 Parts) or Style C: 1 x Umbrella Hole Ring