Function: they are suitable for stabilizing patio umbrellas, reducing and preventing scratches or dents on unstable umbrella poles.
2 Sets 2 Inch Patio Table Umbrella Hole Ring Plug and Cap 2 Set, black
Outdoor Umbrella Hole Ring and Cap Set for 2 Inch Patio Table Umbrella
1 Set of 2 Inch Patio Table Umbrella Hole Ring & Cap Set Premium Silicone Clear